Which of the following occurred in the presence of tetrodotoxin?
A) The number of action potentials increased.
B) The number of action potentials decreased.
C) The size of the action potential decreased.
D) The size of the action potential increased.
Answer: B) The number of action potentials decreased.
You might also like to view...
When deoxygenated blood leaves the right ventricle through a semilunar valve, it is forced into the __________.
a. pulmonary veins b. pulmonary arteries c. aortic arch d. lung capillaries
The nucleus indirectly governs most cellular activities by directing the kinds and amounts of various enzymes and other proteins that are produced by the cell
Indicate whether the statement is true or false
All oxygenated blood returns to the heart via the:
A. pulmonary artery. B. pulmonary veins. C. aorta. D. venae cavae.
The largest quantities of keratin are found in the epidermal layer called the stratum
A) corneum. B) lucidum. C) basale. D) granulosum. E) spinosum.