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The thumb also has three joints, but the Proximal joint is farther up, embeded and mostly concealed in its muscles. That third [base joint] is what allows you to move the thumb to the left or right. NO. If you consider the thumb to have three joints you must be including the carpometacarpal joint which is (as far as i remember) a double saddle synnovial joint. This is the joint that joints the bone of the thumb that is concealed in the hand to the bones of the wrist. Within the visible thumb there is only two joints, the first being between the metacarpal and the proximal phalanx and the second being between the proximal and dislat phalanges. The other digits have and extra bone in the middle of these phalanges called the middle phalanx, giving it a third joint in the visible digit, or if you are including carpometacarpal joints as the original answer does with the thumb then you must do so for the fingers also which means they would have 4 joints each. And to answer the question the presence of a third joint in the thumb is simply unnecessary thanks the range of movement. The other digits require the extra joint so that the tips can come to meat close to the base of the visible digits so that before thumbs had evolvfed we could grasp small thin objects. The thumb has such a range of movement that this extra joint would be more effort to supply than its worth.
The width and length of your thumb are determined by genetics and individual variation. Differences in thumb size can be due to factors such as bone structure, muscle development, and how the thumb is used in daily activities.
The thumb, is different from all the fingers because the thumb is the fattest finger also the most important because you really need a thumb for normal day life but it is possible tio live without one.
It depends but I think that since primates like us and monkeys only have opposable thumbs, they don't consider it a finger.
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Is your thumb as long as your nose?
No, usually a person's thumb is shorter than their nose. The nose is typically longer than the thumb.
Why is your thumb called opposable?
The thumb is called opposable because it can move and touch each of the fingertips on the same hand, allowing for a strong grip and manipulation of objects with precision. This ability is unique to primates and gives humans the dexterity needed for activities like writing, tool use, and grasping small objects.
Why nut can go into the right main bronchus instead of left main bronchus?
The right main bronchus is shorter, wider, and more vertical than the left main bronchus, making it easier for objects to enter. This anatomical difference can increase the likelihood of a nut or foreign object entering the right bronchus rather than the left.
Do thumbs count as fingers?
By definition, yes the thumb counts as a finger. That definition being: any one of the five digits, especially the four other than the thumb. The thumb is merely the only finger to possess abnormal qualities in comparison to the other four fingers. Finger is also a general term where thumb is the specific. If a person is pure German then they are also pure white, however a pure white person is not necessarily pure German. The digit is a thumb therefore it is also a finger, the digit being a finger does not have to be solely a thumb, or an index finger, or even a pinky.
What is the shorter lateral bone of the forearm?
The shorter lateral bone of the forearm is the radius. It is located on the same side of the arm as the thumb and runs parallel to the ulna, the longer medial bone of the forearm.
Are your thumbs different sizes?
yes, my left thumb is shorter than my right thumb and has a small nail
What is an organ that is wider but shorter tube than the small intestine?
Large intestine.
What size is a California king?
it is wider than a normal king bed, but shorter in length!:)
Is your thumb as long as your nose?
No, usually a person's thumb is shorter than their nose. The nose is typically longer than the thumb.
Is the newspaper le monde printed in tabloid format?
No, it's in Berliner format, which is narrower and shorter than broadsheet, but taller and wider than tabloid.
What is Equalizing effect of erections?
Shorter and narrower flaccid penises gain more in length and circumference than do longer and wider penises.
Name an object shorter than a decimeter?
eraser
Why is the thumb not used for taking a patients pulse?
the thumb's tip is in a awkward position than the other fingertips.
What is a cylinder with 1 base wider than the other?
cone
What is the shorter of two intestines in human body?
The large intestine in humans is much shorter (by a factor of around 4) than the small intestine, though it's wider (hence "large").
How much wider is the moon than the earth?
The moon is not wider than the earth. Therefore, it can not be much wider than the earth.
What is the difference between a long ship and a knarr?
The knarr was a cargo ship, the hull was wider, deeper and shorter than a longship.The Knarr was a cargo ship, the longship was a battleship
