As a neuron's refractory period ends, its sodium channels are changing from

A. their resting state to their inactivated state.
B. their activated state to their resting state.
C. their resting state to their activated state.
D. their inactivated state to their resting state.


Answer: D

Anatomy & Physiology

You might also like to view...

The single layer of cells that surrounds the blastocele is the ________.

A. trophoblast B. inner cell mass C. morula D. gastrula E. blastocyst

Anatomy & Physiology

A proenzyme secreted by the pancreas is

A) trypsinogen. B) amylase. C) carboxypeptidase. D) lipase. E) bile

Anatomy & Physiology

When using a straight blade, a major mistake of new paramedics is to:

A) try to pass the ET tube down the barrel of the blade. B) insert the blade directly between the vocal cords. C) use traction while lifting up on the patient's mandible. D) insert the blade into the left side of the patient's mouth.

Anatomy & Physiology

Which layer isĀ notĀ found in the wall of the ureter?

A. Adventitia B. Muscularis C. Submucosa D. Mucosa E. No exceptions; all layers are found in the wall of the ureter.

Anatomy & Physiology