The neurotransmitter that controls skeletal muscle contraction is

A. beta endorphin.
B. GABA.
C. acetylcholine.
D. nitric oxide.


Answer: C

Anatomy & Physiology

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Which is NOT true about cofactors involved in enzymatic reactions?

A. They may alter the conformation of the enzyme. B. Only a small number of cofactor molecules may be needed to maintain enzyme activity. C. They may be a metal such as iron. D. There must be equal quantities of enzyme and cofactor molecules for a reaction to proceed. E. They may be a substrate in a catalyzed reaction.

Anatomy & Physiology

The hollow cavity within the blastocyst is the

A) blastula. B) gastrula. C) blastocoele. D) trophoblast. E) ootid.

Anatomy & Physiology

Which area of the myogram shows sustained contraction with partial relaxation?

a) A b) B c) C d) D e) none of these choices

Anatomy & Physiology

The left side of the heart pumps the same volume of blood as the right

Indicate whether the statement is true or false

Anatomy & Physiology