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If you control it consciously, it would be VOLUNTARY, so that would be false.
True.
true true true
Triceps (the muscles behind/under your arm) are NOT flexors. They are extensors. http://en.wikipedia.org/wiki/Triceps_brachii_muscle You flex your biceps, not triceps.
true. there are 656 muscles in the human body!
"yes". The Biceps Brachii inserts on the radial tuberosity.
True, muscles always work where one contract another relaxes.
False
No it is not true, the antagonist muscle to the biceps is the triceps. You have to think of what muscles will have to release in order to allow contraction, another example would be when the quadriceps contract, your hamstrings must release otherwise the work of the muscles would contradict one another.
Yes, in that sense muscles can only be voluntary or involuntary as far as I know.
false
true