During the initial, depolarizing phase of the action potential, the voltage-gated Na+-channel is in which conformation?
a. closed but capable of opening
b. open, or activated
c. closed and not capable of opening
d. activation gate open; inactivation gate closed
e. activation gate closed; inactivation gate closed
B
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Slow-twitch fibers are specialized to continue contracting for extended periods of time without experiencing fatigue
Indicate whether this statement is true or false.
According to Newton's 2 nd Law, what is the relationship among torque, moment of inertia, and angular acceleration?
A. T = Ia B. I = Ta C. a = TI D. T = Iw
A neuron pool is
A) a group of neurons linked by communicating junctions. B) a group of interconnected neurons with specific functions. C) a group of identical nerve cells. D) the group of neurons available to regenerate a damaged nerve. E) a group of neurons linked by electrical synapses.
Which cells make androgen binding protein?
a. sperm b. spermatagonia c. theca d. granulosa e. Sertoli