Spermiogenesis occurs within the Sertoli cells found in the seminiferous tubules of the testes.

sperm

Spermiogenesis.

formation of a functional sperm by the stripping away of superfluous cytoplasm

A spermotid is an immature male sex cell that develops into a sperm cell through the process of spermiogenesis. During spermiogenesis, the spermotid undergoes structural changes to become a fully mature sperm cell with a head, midpiece, and tail.

Sperm are streamlined through a process called spermiogenesis, during which they undergo morphological changes to develop into their mature form. This process involves the condensation of chromatin in the head, formation of the midpiece containing mitochondria for energy production, and elongation of the tail for motility.

any of the elongated cells in the seminiferous tubules to which spermatids attached during spermiogenesis.

by dr p.s singh 09883992349

22 chromosomes and the sex Y-chromosome making a total of 23

The process by which a spermatid is converted into a motile sperm is called spermiogenesis. During spermiogenesis, structural changes occur that lead to the development of the tail and the formation of the acrosome, which is necessary for sperm motility and fertilization. This process involves extensive modifications to the spermatid's shape and organelles to enable it to swim and penetrate the egg for fertilization.

Spermiogenesis is the final stage of spermatogenesis in which haploid spermatids undergo extensive morphological changes to become mature, spermatozoa. During this process, the spermatids develop into elongated, mobile cells with a head, midpiece, and tail, which are essential for fertilization. Spermiogenesis involves chromatin condensation, acrosome formation, flagellum development, and reshaping of cellular organelles to produce highly specialized sperm cells.

Spermatogenesis is the process of sperm production in males that occurs in the seminiferous tubules of the testes. It is divided into three phases: proliferation, meiosis, and spermiogenesis. The process is regulated by hormones including follicle-stimulating hormone (FSH), luteinizing hormone (LH), and testosterone. FSH stimulates the production of sperm, LH triggers testosterone production, and testosterone is essential for spermatogenesis to occur.

In oogenesis after the first meiotic division one egg and one tiny cell are created. In Meiosis II the egg and three small cells are created. The three small cells are thrown away and the egg undergoes fertilization. In spermatogenesis after meiosis II four working sperms are ready to be used. There is only one usable cell created in oogenesis while in spermatogenesis four cells are created. the end result of oogenesis is only one viable cell while in sprematogenesis there are four.

Spermiogenesis is the process by which spermatids, which are the final products of meiosis in the male reproductive system, undergo differentiation and maturation to become spermatozoa or sperm cells. This process involves structural and functional changes, including the development of a sperm cell's head, tail, and acrosome.

Sperm are formed from the direct maturation of sperm precursor cells called spermatids. These spermatids undergo a process known as spermiogenesis, where they differentiate and mature into fully functional sperm cells. This process occurs in the seminiferous tubules of the testes.

Spermatogenesis is the process by which the seminiferous tubules in the testes produce haploid sperm cells. This process involves multiple steps, including mitosis, meiosis, and spermiogenesis, leading to the formation of mature spermatozoa.

A primary spermatocyte undergoes meiosis to form four haploid spermatids, each containing half the number of chromosomes as the original cell. These spermatids will eventually differentiate into sperm cells through a process called spermiogenesis.

The cellular product of spermatogenesis is four haploid spermatids that will eventually mature into sperm cells through a process called spermiogenesis. Each spermatid contains half the normal number of chromosomes and is produced from a primary spermatocyte through two rounds of cell division.

Spermiogenesis is the final stage of spermatogenesis during which spermatids mature into spermatozoa. This process involves changes like condensing the nucleus, forming the acrosome cap, developing the flagellum, and shedding excess cytoplasm to create a streamlined sperm cell. It is crucial for producing functional sperm capable of fertilizing an egg.

A spermatid is a haploid male germ cell that arises from meiosis and eventually matures into a sperm cell. It has a single set of chromosomes and goes through a process called spermiogenesis to grow a tail and develop other structures needed for fertilization.

The correct order of events during sperm production is spermatogonia undergo mitosis to form primary spermatocytes, primary spermatocytes undergo meiosis I to form secondary spermatocytes, secondary spermatocytes undergo meiosis II to form spermatids, and spermatids mature into sperm cells through spermiogenesis.

The maturation process of sperm, known as spermiogenesis, involves the development of a sperm cell's head, midpiece, and tail in the testes. During maturation, sperm cells acquire the ability to swim and fertilize an egg. Once mature, sperm is released into the epididymis, where it gains motility and becomes capable of fertilizing an egg during sexual intercourse.

Spermatids are immature male germ cells that have undergone the first stage of spermatogenesis. They eventually develop into sperm cells through a process called spermiogenesis, where they undergo further maturation and differentiation. Spermatids have not yet developed the distinctive features of sperm cells, such as a tail for swimming.

Spermatid is an immature sperm cell where a spermatoza is a mature sperm cell.

Spermatogenesis is the process by which the male produces haploid gametes or sex cells (spermatazoa). Here is an explanation of spermatogenesis in humans.

* Spermatogenesis occurs in the seminiferous tubules of the testes in males. * Germinal epithelium gives rise to spermatagonia which are diploid (2n) and thus have 2 sets of chromosomes. * The spermatagonia then increase in size to form primary spermatocytes. * Primary spermatoctes undergo the first meiotic division and secondary spermatocytes are formed. * Secondary spermatocytes undergo another meiotic division to form 4 haploid spermatids.

* Spermatids must undergo a stage of metamorphosis before they become mature spermatazoa. This metamorphosis stage is called spermiogenesis. * During spermiogenesis, the spermatids undergo a change in shape, the cell elongates and the activity of the Golgi apparatus increases and there is production of many granules containing enzymes which are stored in the acrosome and are essential to the process of fertilisation. * One of the centrioles forms the basis from which the spermatazoa's flagellum (or tail) arises, which is required for the propulsion of sperm. * Mitochondria congregate in the neck region of the sperm and produce ATP by aerobic respiration. This ATP is needed for movement of the spermatazoa. * The nucleus also enlarges in this stage and cytoplasm is extruded into the Sertroli cells (Sertoli cells are associated with spermiogenesis). * The spermatazoa is now mature. Having said that, when newly ejaculated, sperm are not able to fertilise the female's oocyte - it is only after capacitation that the sperm is able to fertilise, and this takes place in the uterus and oviducts.

During spermatogenesis, diploid spermatogonium cells undergo mitosis to produce primary spermatocytes, which then undergo meiosis I to form secondary spermatocytes. These secondary spermatocytes then undergo meiosis II to form haploid spermatids. Finally, spermatids undergo spermiogenesis to differentiate into mature sperm cells.

In mammals, it occurs in the seminiferous tubules of the male testes. Spermatogenesis is initiated in the male testis with the beginning of puberty. This comprises the entire development of the spermatogonia (former primordial germ cells) up to sperm cells. The gonadal cords that are solid up till then in the juvenile testis develop a lumen (opening) with the start of puberty. They then gradually transform themselves into spermatic canals that eventually reach a length of roughly 50-60 cm.
They are termed convoluted seminiferous tubules and are so numerous and thin that in an adult male testicle their collective length can be 300 to 350 meters.

Spermatogenesis is the process in which male haploid germ cells are produced from diploid spematogonial stem cells by way of mitosis and meiosis . This occurs in the same way in rats in the seminiferous tubules boundaries of the testes.

Sertoli cells extend inward from the periphery of the seminiferous tubule and provide nourishment to the spermatids as they undergo spermiogenesis. They create a protected microenvironment for the development of sperm, secrete necessary nutrients and hormones, and play a crucial role in maintaining the blood-testis barrier.

The secondary oocyte (ovum) contains most of the cytoplasm and organelles from the oogonium. During spermiogenesis, the last phase of spermatogenesis, most of the cytoplasm and organelles are stripped from the newly formed sperm, except the nucleus, mitochondria, and acrosome (with lysosomic enzymes).

In other words, the sperm only "donate" their DNA and egg "donates" most of the other organelles. The egg is much larger and can contain more.

The formation of male gametes or sperm cells is called spermatogenesis. This is a form a meiosis, in which four daughter cells are formed. The process takes places in the male reproductive organs, the testes. The female counterpart to this is called oogenesis, which produces one usable daughter cells, an oocyte or egg cell, (and three discarded cells called polar bodies) this process occurs in the ovaries.

Parts of Frog testis are

Tunica albuginea - thick white fibrous layer that covers your testis.

Intersitial cells - specialized cell for the production of testosterone.

Basement Membrane- thin fibrous layer encapsulating the semineferous tubule.

Seminiferous tubule- contained developing sperm.

spermatogonia - small cells arranged in a single layer at the periphery of the seminiferous tubules

Sertoli cells - columnar cells which are elongated and tall. Support production of your spermatogonia

Primary and Secondary Spermatocyte - will become sperm cell in the process of spermatogenesis and spermiogenesis.

Spermatids - product of Secondary spermatocyte that already pass in the proces of meiosis 2.

Sperm cell - for reproduction purposes.

by;Mr J.

The short answer is yes.

A progestin may stimulate weight gain and appetite in men. Progesterone influences spermiogenesis, affects blocking of gonadotropin secretion, improves sleep, and affects certain tumors. In conjunction with estrogen, it may add breast volume.

Estrogen may decrease sex drive, reduce or prevent erections, increase breast size, soften the skin, change mental processing (numbers and directions might get fuzzy, though hearing and sociability may improve), and reduce muscle mass.

1. Spermatogenesis takes place in the testes of males, oogenesis takes place in the ovary of the females.
2. Spermatogenesis produces small, motile spermatozoa whereas in oogenesis the ovum is spherical, not motile and is much larger with more food reserves and cytoplasm.
3. Spermatogenesis involves a metamorphosis stage called spermiogenesis, in oogenesis there is no metamorphosis stage.
4. In spermatogenesis, 4 gametes are produced from each meiotic division, whereas in oogenesis there is only 1 gamete produced from each division as the unequal cytokinesis leads to the formation of polar bodies.
5. Spermatogenesis occurs in males (human males) continuously from puberty to death whereas oogenesis starts in females in the fetal period. It takes 70 days for sperm to be produced in males.
6. In oogenesis, the development of the oocyte is arrested at prophase I of meiosis until puberty, and then stops at metaphase II of meiosis until fertilization, where the meiotic division is finally completed. In males meiosis occurs continuously
7. The hormones in the 2 processes have different effects - in oogenesis, FSH is responsible for the choice of the primary oocyte and causes the cells of the membrana granulosa to proliferate to form the theca interna which secretes oestrogen, and the theca externa. LH in females stimulates ovulation and the maturation of the Graafian follicle. In males, on the other hand, FSH increases the activity of the Sertoli cells which are involved in spermiogenesis (the metamorphosis stage of spermatogenesis). LH in males stimulates the Leydig cells to secrete testosterone.

Spermiogenesis is tha final stage of the spermatogenesis which sees the maturation of the spermatid(results of division of spermatocyte-n). It is divided into 4-stages- 1.GOLGI PHASE ACROSOME( organelle that develops over the anterior half of the head and is the cap-like structure formed from the golgi appratus)- creates enzyme. At the other end, it develops a thickned mid-piece, where the mitocondria gathers and distil centriole begins to form AXONEME. SPERMATIDS DNA undergoes packing and become condensed. The DNA is packed first with specific nuclear basic protien which are subsequently replaced with PROTAMINE. 2. CAP PHASE 3.FORMATION OF TAIL one of the centriole of the cell elongates to become the tail of the sperm. A temporary structure called MANCHETTE exist in this elongation. During this phase the developing spermatozoa orient themselves so that their tail point toward the centre of the lumen, away from the epithelium. 5.MUTURATION PHASE.

"Spermatogenesis is the process by which male spermatogonia develop into mature spermatozoa. Spermatozoa are the mature male gametes in many sexually reproducing organisms. Thus, spermatogenesis is the male version of gametogenesis. In mammals it occurs in the male testes and epididymis in a stepwise fashion, and for humans takes approximately 64 days.[1] Spermatogenesis is highly dependent upon optimal conditions for the process to occur correctly, and is essential for sexual reproduction. It starts at puberty and usually continues uninterrupted until death, although a slight decrease can be discerned in the quantity of produced sperm with increase in age. The entire process can be broken up into several distinct stages, each corresponding to a particular type of cell:

Cell type | ploidy/chromosomes | chromatids | Process

spermatogonium (types Ad, Ap and B) | diploid/46 | 2N | spermatocytogenesis (mitosis)

primary spermatocyte | diploid/46 | 4N | spermatidogenesis (meiosis 1)

secondary spermatocyte | haploid/23 | 2N | spermatidogenesis (meiosis 2)

spermatid | haploid/23 | 1N | spermiogenesis

sperm | haploid/23 | 1N | spermiation"