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40.  Troponin:

23.  A single, mid-shaft bone region is the:

51.  The main ion flux across the nerve cell membrane that occurs during nerve cell depolarization is:

36.  Actin filaments are anchored at their ends to disc-like structures found at the ends of the sarcomere.  These structures are called:

62.  The main neurotransmitter found in the parasympathetic nervous system is:

99. Name the structure:

58.  The great majority of parasympathetic impulses are carried by:

59.  Contraction of the ciliary muscle in the eye causes:

50.  A small, localized deviation in ion distribution (on either side of a neuron cell membrane), resulting in a fairly small & localized change in membrane potential describes:

45.  The brain & spinal cord anatomically constitute: