Not certain what you mean but try google / involute curve , then click on the involute curve
the involute curve is the fundemantal shape of (amongst others) a spur gear tooth profile, generated from the gear base circle diameter.
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how to calculate different stresss on the involute internal spline
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EXTERNAL INVOLUTE SPLINE
MAJOR DIA : 140mm.
MINOR DIA : 128mm.
NO. OF TEETH : 22
SPLINE WIDTH : 8mm.
IS : 3665
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as it is known there two types of gear tooth available. but only the involute gear tooth is used in every place. This is because the cycloidal gear tooth do not allow any tolerances for centre distance between the gears. It is has to be very exact for the cycloidal gears to mesh properly. but the involute gears allow certain degree of change in centre distance hence the involute gear tooth is used always.
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1. gear teeth profile
2. scroll compressor
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Interference occurs when the addendum of the involute gear goes on the increased. When this occurs there is a increase in the toothspace and decrease in the teeth of the particular gear.
So with reduction in the toothspace there occurs a slipping in the involute gear.
Inorder to reduce that particular condition we have to avoid interference in gears.
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Interference in involute teeth in gears occurs when the teeth profiles unexpectedly collide, leading to jamming and inefficiencies. This can happen if the gear teeth are poorly designed or if the gears are not properly aligned. To avoid interference, ensure that the gear teeth profiles are designed correctly and that the gears are set up to avoid misalignment during operation.
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gears mesh with gears both have external teeth where as spline meshes with internal teeth .both are used to transfer torque.
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Sven A.E Andersson has written:
'On the design of internal involute spur gear' -- subject(s): Gearing, Spur, Spur Gearing
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The contaminated gas is brought into intimate contact with curtains of liquid spray directed at right angles to the gas flow after it enters the involute section. The scrubbed gases proceed along the involute where the bulk of the iquid is separated. The remainder of entrained droplets are removed when the accelerated gases enter the spin zone. The liquid moves by gravity to the bottom cone drain, and the cleaned gases leave the scrubber at the top outlet.
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Up to a couple days in their viable form, several days in a less than viable but still alive state, up to ten days. They involute, degenerate and are reabsorbed, and turn into catabolic
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Post foaling, the mare's uterus needs to discharge remaining fluid and return to it's original size (involute). By around 10 days post foaling the mare has gone through foal heat and completed the "cleaning stage".
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W. Steeds has written:
'Engineering materials, machine tools and processes' -- subject(s): Machine-shop practice, Machine-tools, Metal-work, Metals
'Involute gears' -- subject(s): Gearing
'Mechanism and the kinematics of machines' -- subject(s): Kinematics of Machinery
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-V--U--. That is, eight letter words with 1st letter I and 3rd letter V and 6th letter U. In alphabetical order, they are:
involute
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern I----UT-. That is, eight letter words with 1st letter I and 6th letter U and 7th letter T. In alphabetical order, they are:
imminute
involute
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this curve is used a lot in gear design. This curve is used to get the gear tooth profile and when two gears of this profile mesh, the instantaneous contact point is only one and it moves along the curve profile. This property is known as line of action or line of Contact or pressure Line and this is why it is used extensively in gear design.
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Planocentric refers to an approach or design perspective that emphasizes a flat or two-dimensional representation of space or objects, often used in the field of cartography or graphic design to create maps or images with a focus on horizontal layout and organization.
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Yes, but it's not recommended. Even 30 days post-partum is too soon to get a cow to breed back. Ideally, you should aim to get your cow bred anywhere from 45 to 90 days post-calving to give her time to rest and allow her uterus to involute or go back to its normal size.
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Interference in gears is mating of two non-conjugate or non-involute tooth profiles. Basically when the tip of pitch circle of pinion O1 tries to dig out (interfere with) the tooth of the gear wheel O2 .
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I---LU-E. That is, eight letter words with 1st letter I and 5th letter L and 6th letter U and 8th letter E. In alphabetical order, they are:
involute
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The shape is known as an involute
the shape is analogous to unwinding a piece of string from a spool representing
the base circle diameter of the gear, imagine your pencil at the end of the string and the string kept tight during unwinding, unwind until line meets OD of gear, then apply blend radius at base circle, then mirror about tooth centre line for full tooth profile.
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 8 words with the pattern I---L-T-. That is, eight letter words with 1st letter I and 5th letter L and 7th letter T. In alphabetical order, they are:
ideality
immolate
impolite
inkblots
insolate
insulate
involute
isopleth
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 12 words with the pattern IN---U--. That is, eight letter words with 1st letter I and 2nd letter N and 6th letter U. In alphabetical order, they are:
inasmuch
incisure
infecund
infimums
ingenues
inground
ingroups
insecure
insomuch
instruct
intitule
involute
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1..Gears are components which are being used for large power transmission at shorter distances.
2..velocity ratio could be improved and hence slippage is being reduced other than that of using belts,ropes,chain drives....
3..types of gears are involute gear,spur,helix,herringbone or double helix gear, MITRE,bevel, harmonic,cage gears,etc
whereas gearing referred to mating with the other one...>>>>>>.
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I--O-UTE. That is, eight letter words with 1st letter I and 4th letter O and 6th letter U and 7th letter T and 8th letter E. In alphabetical order, they are:
involute
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern IN---UTE. That is, eight letter words with 1st letter I and 2nd letter N and 6th letter U and 7th letter T and 8th letter E. In alphabetical order, they are:
involute
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-V-LUT-. That is, eight letter words with 1st letter I and 3rd letter V and 5th letter L and 6th letter U and 7th letter T. In alphabetical order, they are:
involute
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern IN-OL--E. That is, eight letter words with 1st letter I and 2nd letter N and 4th letter O and 5th letter L and 8th letter E. In alphabetical order, they are:
insolate
involute
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The letters can be used to spell the valid Scrabble words eloin (to remove to a distant place), envoi (the closing of a poem or prose work), louie (a lieutenant of the armed forces) and olein (the liquid portion of a fat). They also spell the Scrabble words olive, ovine (a sheep or a closely related animal), ovule (a rudimentary seed), teloi (an ultimate end), toile (a sheer linen fabric), unite, untie, utile (an African hardwood tree) and voile (a sheer fabric).
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Since there is no mention of how long the mare has been in continuous heat this is a very difficult question to answer effectively.
Generally, mares will enter into heat as early as 3 days post foaling. The length of this heat cycle is variable with many mares ovulating 6 to 10 days post foaling. The
number of days post ovulation where the mare acts receptive could make her appear to be in heat for 12 or 14 days post foaling.
That being said, mares that do not clean and involute well post foaling will often return to heat early, which may also give the impression that the mare has been in
continuous heat.
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Young mares with uncomplicated births (single foal, normal presentation of foal, no difficulties expelling foal or placenta, no signs of infection) can potentially be bred on foal heat, which can begin as early as 6 days post foaling. Breeding on the foal heat is usually only successful if the mare ovulates 10 days or longer after foaling. This period gives the uterus time to "clean" and involute (return to normal size). Older mares who have had a number of foals (multiparous) require more work to get in foal during foal heat and are often bred on the first full heat which can begin as early as 26 days post foaling.
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Roy M. Sullivan did not write any books. He was a park ranger who held the Guinness World Record for being struck by lightning the most times. Sullivan was struck by lightning a total of seven times throughout his lifetime.
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A mare can potentially get in foal ten days post foaling, however, many mares will ovulate before 10 days post foaling during their foal heat. It is generally believed that
mares the ovulate before the uterus has fully returned to it's normal pre pregnancy
condition (about 10 days to clean and fully involute) cannot maintain a pregnancy.
If no breeding is done during the foal heat the breeder is aware of her ovulation date, she can be short cycled using prostiglandin 5 days post ovulation and she will be receptive in another 5 days. This would place estrus at anywhere from 16 to 20 days post foaling.
If the mare is not short cycled she should return to estrus naturally 14 days post foal heat ovulation at 20 to 24 days (approximate).
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Rotary Broaching is a method of producing both internal and external forms fast and accurately on the end of a workpiece. Rotary broaching makes it possible to very accurate forms within 0.0005 inches within seconds.
With rotary broaching not only can you produce standard shapes such as hexagons and squares but also shapes such as Double Hex Rotary Broaches, 6-Lobe Rotary Broaches, Serration Rotary Broaches, J500 Rotary Broaches, Spline Rotary Broaches, Involute Rotary Broaches, Torx Rotary Broaches, Double D Rotary Broaches and any other Special Design Required. Rotary broaches can be made to just about any size, English or Metric.
Some of the material that can be rotary broached is brass, aluminum and steel and can go as much as 2 inches deep.
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A cow with a body condition score (BCS) of 5-7 may take 45-60 days to return to heat after calving. Body condition score reflects the energy reserves of the cow, which can influence the reproductive cycle. Proper nutrition and management can help shorten the postpartum interval to return to estrus.
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In its heyday, Pluviculture or (Rain-making) was essentially a quack science though infested with various types of apparatus which might have had some residual scientific value. I seem to recall seeing photos of Pluviculture apparatus which worked on the principle of evaporating certain types of mineral salts as so to stimulate precipitation by evaporation. These had comical looking double-involute bellows (folding inwards, not lilke the camera type) on the back of Horse- drawn wagons and this evaporative process was said to be equivalent to modern (Cloud Seeding) which uses Silver nitrate ( a somewhat hazardous substance!) and Barium compounds, these modern attempts use rocket shells and/or drops from aircraft to perform the cloud-seeding task, not bellows pumps at ground level. Some fragments of science were foundint he rubble of an essential con game or quack science that did have a rudimentary knowledge of the water cycle and attempted to speed it up.
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There are just too many factors at play here. First off, why is she being run continuously with the bull? Ideally the bull should be separated from the cow except during the time she needs to be bred or is ready to be bred. She should be bred 45 to 60 days after giving birth, a couple weeks later to time her cycles so that she calves around the same date. But if she's being run with the bull continuously she could have been bred much too soon after birth, like 20 to 30 days after giving birth, which is too soon because it doesn't give her the time to rest and allow her uterus to "involute" or return to its normal shape before conception.
So if I were you, unless there's a good reason that the bull should be kept with the cow 24/7/365, consider separating them for the reasons stated above.
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If fertilization occurs, the corpus luteum continues to produce progesterone and other hormones to support the early stages of pregnancy. It will persist throughout the first trimester until the placenta is developed enough to take over its functions. If fertilization does not occur, the corpus luteum degenerates, leading to a drop in hormone levels and the onset of menstruation.
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Anna Hazare civil society implies inclusion of civilians among official executives for major national decision making at the centre and the states. Those might include retired judges. The idea at its face value is good but it is ill-conceived by the ill-intentioned RSS ( Rastriya Swaim Sevak Sangh) who killed Gandhi.
This Scandinavian idea is not new to India where it is already being used by nomination of talented people into Rajya Sabha and into so many panels. But, Anna and his followers want to get hold like an octopus over the national government. It is ill-conceived to overthrow reservation policy without abolishing caste system, crush minorities, brow-beat the young executives, amass wealth into the hands of Hindu clergymen who have at least small temples in each and every nook and corner of India. Hindu clergymen are the social rulers of the civilians in India. Ultimately the dream is to get into their hands the national power once again as during the days of hundreds of kings in India before independence.Talking about anti-corruption to mobilise people but aiming elsewhere. They actually want to become Hafta-men (Gundas who collect ransom) from corrupt government servants. Civil society with Hinduism will perpetuate crime and corruption.
Nevertheless, foreign powers might lose their prowess over government and the nation might involute into a cow-worshiping Bharat once again.
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You can pregnant as soon as you ovulate. Some women ovulate four to six weeks after delivery. Others (particularly breast feeding moms) may have their first ovulation much later. How can you tell if you've ovulated? If you have a period. Unfortunately, this is not a good way to predict when you will need contraception. To avoid pregnancy soon after birth: 1. Avoid sexual intercourse for 6 weeks after delivery. This will also allow the uterus to involute properly, the vaginal tissues to heal, and decrease the risk of a uterine infection. 2. Discuss contraception with your doctor before you leave the hospital. If you plan to go on the pill, a prescription can be given to you at this time and you can start it at the appropriate time. If you plan to use depoprovera or get an IUD, let your doctor know so he or she can discuss timing with you. 3. DO NOT DEPEND on breast feeding for contraception. Unless you are breast feeding around the clock without supplementation, you probably won't get a protective effect. Even then, you can still ovulate and conceive at any time. 4. Use condoms if there's any possibility of conceiving.
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The act of unfolding or unrolling; hence, in the process of growth; development; as, the evolution of a flower from a bud, or an animal from the egg., A series of things unrolled or unfolded., The formation of an involute by unwrapping a thread from a curve as an evolute., The extraction of roots; -- the reverse of involution., A prescribed movement of a body of troops, or a vessel or fleet; any movement designed to effect a new arrangement or disposition; a maneuver., A general name for the history of the steps by which any living organism has acquired the morphological and physiological characters which distinguish it; a gradual unfolding of successive phases of growth or development., That theory of generation which supposes the germ to preexist in the parent, and its parts to be developed, but not actually formed, by the procreative act; -- opposed to epigenesis., That series of changes under natural law which involves continuous progress from the homogeneous to the heterogeneous in structure, and from the single and simple to the diverse and manifold in quality or function. The pocess is by some limited to organic beings; by others it is applied to the inorganic and the psychical. It is also applied to explain the existence and growth of institutions, manners, language, civilization, and every product of human activity. The agencies and laws of the process are variously explained by different philosophrs.
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Children, who still have very weak immune systems and whose immune systems are still strengthening, are exposed to germs and bacteria frequently, especially while playing, thus the tonsils are prone to get infected. Adults hardly get tonsillitis due to changes that take place in the tonsils after puberty. Tonsils involute (“curl up”) after puberty and their function decreases. It also occurs as an allergic reaction to allergens, for example pollen, cold things, food preservatives, drugs, mechanical injury etc. Overcrowding, poor nutrition and inadequate ventilation help propagate epidemics of tonsils. Fatigue and exposure to cold may lower the body’s resistance to infection.
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No. A pregnant cow can still lactate or give milk. A bred cow will have a "wet" (lactating) period and a "dry" (non-lactating) period. A cow's "wet" period lasts from parturition until her calf is weaned or, if she's a dairy cow, the farmer decides to let her dry off and rest before she calves again. A cow's dry period lasts from the time she is dried off (dairy farmer's decision) or when she has a calf weaned off her (beef cattle) until next parturition.
After a cow gives birth, she has 45 to 60 days (or around two-months, sometimes up to 3 months) of rest to allow her uterus to involute or go back to normal size, and allow her to go back into normal estrus cycling. After this period she is bred again, either by bull or artificial insemination. She will still be producing milk even after she has settled and become pregnant again. A beef cow will be lactating until her calf is around 6 months old. Once her calf is at this age he is weaned from her, and she is "forced" to no longer produce milk. When the calf is 6 months old, she will be 3 to 4 months pregnant. A dairy cow, on the other hand, will be lactating until she is 2 months away from her next due date to deliver her next calf, which means she will be giving milk for 10 months after the birth of her calf, then be dried up when she is 7 months into her pregnancy. Some beef cows will be allowed to have their calves suckle them until they are 10 months of age.
A lot of where people think that pregnant cows are dry cows is from what they have learned about human pregnancy and the fact that women are not lactating when they are pregnant. This is like comparing apples to oranges and should not be used as a way to compare the reproductive physiology and workings of a cow versus a woman. Thus one should not think that just because a cow is pregnant she is not still giving milk.
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The human menstrual cycle is a monthly cycle that involves the shedding of the uterine lining in the absence of pregnancy. It typically lasts about 28 days and is controlled by hormones such as estrogen and progesterone. The cycle starts with menstruation, followed by the development and release of an egg, and ends with either pregnancy or the shedding of the uterine lining.
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You can find great videos on how the rotary broaching process works at Polygon Solutions website.
Rotary Broaching, also known as Wobble Broaching, is unlike the conventional broaching method. The conventional method has a sequence of polygon forms that increase in size and are pushed through a hole until the desired form size is achieved. Rotary Broaching can achieve this in one pass by cutting the full form, one corner at a time, without the need for a secondary operation. This works exceptionally well on Horizontal or Vertical Spindle Machines such as Lathes, Mills, etc.
Rotary Broaching is a precision method for producing internal polygon forms at an extremely fast rate. The entire operation can be completed within seconds and can produce forms to 0.0005" accuracy or better. This advanced engineering has caused Rotary Broaching to become increasingly popular; especially in the medical, automotive, aerospace and plumbing industries.
There are only two necessary components that achieve the Rotary Broaching process: 1) A Rotary Broach Tool Holder 2) Rotary Broach. The principle that makes this process work is the 1° angle of the cutting tool to the centerline of the work piece. This causes the Rotary Broach to shear into the work piece, with a chisel or scalloping effect, as the broach is fed into the part to the depth required. The Rotary Broach Tool Holder has a live spindle that holds the broaching tool, allowing the spindle to spin freely within the Tool Holder. It is then driven by contact with the rotating work piece. Our Rotary Broach Tool Holders are adjustment-free so there is minimal setup required and include such features as sealed bearings which require no routine maintenance and a pressure relief hole that allows air and fluid to freely escape.
With Rotary Broaching it is possible to broach such forms as:
⊕ Hexagon
⊕ Square
⊕ Torx
⊕ Serration
⊕ Keyway
⊕ Double Square
⊕ Double D
⊕ Double Hex
⊕ Involute
⊕ Spline
⊕ Spur Gear
⊕ J500
⊕ Other Polygon Forms
The two most common forms are hexagons and squares. Standard broach tools are made from M-2 High Speed Steel, but may also be produced from harder material such as M-42, PM T-15 or PM M-4 HSS. Coatings such as Titanium Nitride, Titanium Carbo-Nitride or Titanium Aluminum-Nitride can be added to produce additional strength, longevity and durability.
These forms can be broached in aluminum, brass, steel, titanium,
plastic and other materials at a depth of up to 2 times the diameter
of the broach.
Rotary Broaching is the most superior method used to get a polygon
form into the end of a part without the need for a secondary operation.
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The compressor in a fridge works by compressing the refrigerant gas, increasing its pressure and temperature. This high-pressure gas then flows through the condenser coils, where it releases heat and condenses into a liquid. The liquid refrigerant then moves through the expansion valve, where it undergoes a rapid expansion and cools down before entering the evaporator coils to absorb heat from the fridge.
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I don't know how old you are, or if you are a boy or a girl; but I'll keep my answer simple.
Imagine you keep hoping a friend will come and stay with you, so you prepare a guest room complete with fresh flowers and a basket of fruit. When your friend doesn't come, you need to throw out the wilted flowers and the unwanted fruit.
In a similar way, a woman's body prepares itself for her "guest" by padding the walls of her womb (her uterus --- kind of like a little room in her body) and preparing a way to feed the baby guest. When no baby comes, the body "throws away" the padding (uterine lining) and the other stuff it was saving to make it nice and comfy for the little guest. Because it's coming out of a woman's body, it looks like blood...because that's what it mostly IS! Our blood carries oxygen and food around to all the cells in our body and carries away the trash our cells need to get rid of. The baby guest, too, would need oxygen, food, and something to carry away its waste. but, sadly (or luckily...depending!) no baby comes, so all that unneeded stuff is passed out of the woman's body near the same area that other waste comes out, and it starts all over again the next month. This happens each month from about the time the girl is a young teenager until she is about 50!
I hope this helps.
if you're older, this answer may be more appropriate:
The menstrual cycle is a recurring cycle of physiologic changes that occurs in reproductive-age females. Overt menstruation (where there is blood flow from the vagina) occurs primarily in humans and close evolutionary relatives such as chimpanzees.[1] Females of other species of placental mammal undergo estrous cycles, in which the endometrium is completely reabsorbed by the animal (covert menstruation) at the end of its reproductive cycle. This article focuses on the human menstrual cycle.
The menstrual cycle, under the control of the endocrine system is necessary for reproduction. It may be divided into three distinct phases: menstruation, the follicular phase and the luteal phase.[2] Ovulation defines the transition from the follicular phase to the luteal phase. The length of each phase varies from woman to woman and cycle to cycle, though the average menstrual cycle is 28 days.[2] Hormonal contraception interferes with the normal hormonal changes with the aim of preventing reproduction.
Stimulated by gradually increasing amounts of estrogen in the follicular phase, menses slow then stop, and the lining of the uterus thickens. Follicles in the ovary begin developing under the influence of a complex interplay of hormones, and after several days one or occasionally two become dominant (non-dominant follicles atrophy and die). Approximately mid-cycle, 24-36 hours after the Luteinizing Hormone (LH) surges, the dominant follicle releases an ovum, or egg in an event called ovulation. After ovulation, the egg only lives for 24 hours or less without fertilization while the remains of the dominant follicle in the ovary become a corpus luteum; this body has a primary function of producing large amounts of progesterone. Under the influence of progesterone, the endometrium (uterine lining) changes to prepare for potential implantation of an embryo to establish a pregnancy. If implantation does not occur within approximately two weeks, the corpus luteum will involute, causing sharp drops in levels of both progesterone and estrogen. These hormone drops cause the uterus to shed its lining in a process termed menstruation.
In the menstrual cycle, changes occur in the female reproductive system as well as other systems (which lead to breast tenderness or mood changes, for example). A woman's first menstruation is termed menarche, and occurs typically around age 12. The end of a woman's reproductive phase is called the menopause, which commonly occurs somewhere between the ages of 45 and 55.
*hope this answers your question! *
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