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Fingers & Fumbs: Finger Muscles

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eggshaped
327174.  Tue Apr 29, 2008 10:15 am Reply with quote

Question: How many muscles are there in your fingers?

Forfeit: Any number they come up with other than zero..unless they say thousands

Answer: Your fingers have no muscles, they are all moved by muscles in your forearm.


Notes:
The muscles for controlling your fingers are located in the forearm. Fingers are actually moved like puppets on a string, the strings being the tendons which are moved by the muscles of the forearm. Try drumming your fingers (preferably in an exaggerated fashion) and watch the skin on your forearm ripple like a horror scene in a sci-fi movie. Another neat trick to show this is to place your hand on the table as if you were doing an impression of a spider with straight legs, tuck your middle finger under the hand and then try to lift each finger in turn, you’ll find that you can’t lift your ring finger, this is because the tendons (not the muscles) in your fingers are all independent of each other, except for the middle finger & ring fingers.

To move your fingers side-to-side, like to do the “live long and prosper” sign, you work muscles in your hand, again these are not in the fingers themselves. However, if one wanted to be ultra-pedantic, one could say that there are actually thousands of muscles in each finger, if you include the tiny muscles that cause you hairs to stand up, or your blood vessels to contract.

A human hand has 27 bones; in fact, over half the body’s bones can be found in the hands and feet. The human body has over 600 muscles, the word comes from the Latin for “little mouse” because the movement of the biceps was thought to resemble the movement of a mouse under the skin.
A commonly seen factoid on the net says that the tongue is the strongest muscle in the human body. This is completely wrong, no matter what definition of “strongest” one uses. The strongest muscle will actually be the largest (which means it’s either your gluteus maximus or the quadriceps in your thigh) or the one that can exert most pressure on an object which means it’s your jaw muscle. A strong case though can be made for the uterus, which is probably the strongest “pound for pound”, it weighs around a kilogram, but during childbirth can exert a force equivalent to a modern longbow.

Picture Ideas:
Would like something like this, for the "trick"


Further sources:
http://www.etymonline.com/index.php?term=muscle
EBR
wik (muscles, english longbow)

 
dr.bob
327192.  Tue Apr 29, 2008 10:33 am Reply with quote

eggshaped wrote:
A strong case though can be made for the uterus, which is probably the strongest “pound for pound”, it weighs around a kilogram, but during childbirth can exert a force equivalent to a modern longbow.


Sadly, though, it doesn't quite have the same range as a longbow.

 
Flash
327490.  Tue Apr 29, 2008 5:24 pm Reply with quote

It'd be an hilarious way to tease it out, though:

Quote:
SF: I'll give you a clue - it exerts the same force as a longbow.

 
dr.bob
327603.  Wed Apr 30, 2008 4:23 am Reply with quote

Cue jokes about ping pong balls.

 

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