The AV node delay is beneficial because
A) it allows time for the atria to contract.
B) it allows time for the ventricles to contract.
C) it allows time to send feedback to the brain about heartrate.
D) it decreases neural stimulation of the heart.
E) it hyperpolarizes the ventricular cell membranes.
A
You might also like to view...
Afferent neurons have a long peripheral axon and a short central axon
Indicate whether the statement is true or false
Which of the following best describes the orbicularis oris?
A) It draws the eyebrows together. B) It pulls the lower lip down and back. C) It closes, purses, and protrudes the lips. D) It allows blinking and squinting of the eyes.
A person suffering a stroke in the right parietal lobe may lose the ability to recognize faces. This is called
A. aphasia. B. aprexia. C. athetosis. D. amorphosynthesis. E. incoherency.
What is the definition of inspiratory capacity?
A. The amount of air remaining in the lungs after the expiration of a normal breath at rest B. The maximum amount of air that can be inspired after the expiration of a normal breath at rest C. The maximum amount of air that can be moved D. The maximum amount of air the lung can hold