During which of the following phases is K+ permeability greater than at rest?
A. During the after-hyperpolarization phase of an AP
B. During the depolarizating phase of an AP
C. During vesicular release of neurotransmitter from the presynaptic neuron
D. During the repolarizing phase of an AP
E. None of these, K+ permeability is greatest at rest
Answer: D
You might also like to view...
The region of the sarcomere containing the thick filaments is the
A) Z line. B) M line. C) H band. D) A band. E) I band.
Which of the following is a function of the trigeminal nerve (cranial nerve V)?
A. Supplies motor activity to all muscles of facial expression B. Provides motor innervation to the muscles of chewing C. Innervates muscles of the eyeball that allows a downward gaze. D. Carries sympathetic nerve fibers that cause dilation of the pupils.
What is the term used for swallowing?
A. Peristalsis B. Mastication C. Deglutition D. None of these are correct.
The plexus that supplies the upper limbs is the ________ plexus.
A. brachial B. branchial C. cervical D. coccygeal E. lumbar