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they shouldnt..

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โˆ™ 2008-08-10 17:27:35
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Q: Why do your hand muscles contract when you yawn?
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Why do hand muscles contract when vomiting?

Vomiting tends to make the body tense up. The hand muscles might contract as a result of this tensing. Also, vomiting can cause dehydration which can make muscles contract.


How many muscles are used to yawn?

32


What is it called when you demand oxygen to muscles?

A yawn


Why do your eyes water when you yawn?

When you yawn, your facial muscles get scrunched up, and that forces some tears out.


When do muscles contract?

muscles contract when you tell them to...


What happens during isokinetic exercise Muscles contract at a constant rate. Muscles contract and relax to move a joint. Muscles do not contract at all. Muscles contract with very little body movement.?

Muscles contract and relax to move a joint. ... Muscles contract at a constant rate. Muscles contract and relax to move a joint.


Why do muscles contract after exercising?

Why do muscles contract while exercising


How many muscles does it take to yawn?

it takes about 12 musceles to yawn and 80 musceles to laugh at you if you took this answer from this answer jkjkjkjkjk


What muscles contract to cause inhalation?

The intercostal muscles, (muscles between the ribs), contract.


What does biceps help you move?

your biceps are the muscles that move your lower arm and hand up. You usually have two or more muscles for each bone. These muscles work together for instance the biceps and triceps. When your biceps contract, your arm bends up. when your bicep relaxes and your triceps contract, your hand lowers again, you can try it on a table. Lay your arm flat then raise your arm from the hand to your elbow, when you lift and let it down, you will se your muscles bulge. Notice though that the muscles does not contract the other way or stretch. it relaxes.


How do the muscles contract and relax?

muscles contract and relax by bring about movements.


How do muscles contract and relax?

muscles contract and relax by bring about movements.

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