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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Ciliary action aids movement of an egg through a uterine tube
Indicate whether the statement is true or false
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).
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
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.