Which Statement Regarding Autonomic Innervation of the Heart Is Correct

question 96

Multiple Choice

Which statement regarding autonomic innervation of the heart is correct?

• A) The release of norepinephrine (NE) and epinephrine (E) by the adrenal medulla decreases the force and degree of contraction.
• B) Norepinephrine released by sympathetic neurons increases the heart rate.
• C) Acetylcholine released by parasympathetic neurons results in increased heart rate.
• D) Parasympathetic release of norepinephrine at synapses in the myocardium result in an increase in stroke volume.
• E) Acetylcholine released by sympathetic neurons result in an increase in the force of cardiac contractions.

---

Definitions:

Electromagnetic Field

A physical field produced by electrically charged objects, affecting the behavior of charged objects in the vicinity.

Therapy

Treatment intended to relieve or heal a disorder, often involving regular sessions or interventions.

Cell

Structural and functional unit of all living organisms; sometimes called the building block of life.

NK Cell Activity

The functions performed by natural killer cells, a type of white blood cell, involved in the body's innate immune response against tumors and viral infections.