Once the action potential reaches the axon terminal, what happens next?
A) release of a neurohormone into the blood
B) exocytosis of a neurocrine
C) release of the neurotransmitter into the synaptic cleft
D) Any of the above could happen next.
D) Any of the above could happen next.
You might also like to view...
Which of the following is a physiological buffer?
A. Bicarbonate buffer B. Renal mechanism C. Phosphate buffer D. Protein buffer
Platyhelminthes exhibit which of the following lifestyles?
A) Free-living B) Free-living and ectoparasitic C) Ectoparasitic and endoparasitic D) Free-living, ectoparasitic, and endoparasitic
The vitamin that functions as part of coenzyme A is
A) pantothenic acid (B5). B) nicotinic acid (B3). C) folic acid (B9). D) cobalamin (B12). E) riboflavin (B2).
Which of the following is not a type of capillary?
A. Fenestrated B. Sinusoidal C. Continuous D. Distributing