Drugs may influence synaptic transmission by
a. altering the formation of neurotransmitters
b. blocking neurotransmitter reuptake
c. blocking receptors
d. blocking channels
e. all of the above
E
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The common __________ veins converge at the level of L5 to form the inferior vena cava.
Fill in the blank(s) with the appropriate word(s).
Ciliary action aids movement of an egg through a uterine tube
Indicate whether the statement is true or false
Select the incorrect statement about the action potential
a. it has an all-or-none characteristic. b. it has a refractory period. c. it is triggered by depolarization to threshold. d. it occurs along a plasma membrane. e. it speeds up transmission by summation.
Which of the following is comprised of anterior rami from C5-T1?
A. Brachial plexus B. Coccygeal plexus C. Cervical plexus D. Lumbar plexus E. Sacral plexus