At the peak of an action potential,
a. the diffusion of Na+ through voltage-gated channels ceases
b. the concentration gradient for K+ promotes the movement of this ion out of the cell
c. K+ permeability greatly increases
d. the electrical gradient promotes the diffusion of K+ out of the cell
e. all of the above are true
E
You might also like to view...
After CO2 is produced by tissues, in what form is most of that carbon transported to the lungs for removal from the body?
A. As H2CO3 B. Bound to hemoglobin C. As carbonic anhydrase D. As dissolved CO2 E. As dissolved HCO3-
The caudate nucleus and the lentiform nucleus are anatomically separated by (the)
A) longitudinal fissure. B) internal capsule. C) fornix. D) corpus callosum. E) All of the answers are correct.
A motor unit is
A) a motor neuron and the muscle fibers connected to it. B) the functional unit of a muscle fiber. C) many myofibrils in a sarcolemma. D) many motor end plates at a neuromuscular junction.
All hormones are first formed as precursors, and then are pruned into active hormones
Indicate whether the statement is true or false