Which of the following statements correctly describes the activation of autonomic nervous system function within the circulatory system?

a. Sympathetic nervous system activation decreases cardiac output
b. Parasympathetic nervous system activation increases heart rate
c. Sympathetic nervous system activation constricts arteries found within the salivary glands.
d. Parasympathetic nervous system activation constricts arteries found within erectile tissue

The ANS controls the involuntary contraction of the heart cardiac muscles, glands, intestine,the peripheral resistance of vascular systems, and the rate of pumping of the blood by the heart.

Thus, the ANS system during stressful conditions increases the blood pressure,heart rate, constrict blood vessels in glands and intestine and dilate the pupils, in anticipation for fight or flight.

luisvaschetto luisvaschetto · Answer 2 · 2021-11-16T14:50:30+01:00

The statement 'sympathetic nervous system activation constricts arteries found within the salivary glands' describes the activation of autonomic nervous system function in the circulatory system (Option c).

The autonomic nervous system (ANS) is a fundamental part of the peripheral nervous system responsible for regulating involuntary physiological mechanisms (e.g., blood pressure, heart rate, respiration rate, etc).

The ANS is divided into the Sympathetic nervous system (SNS) and the Parasympathetic nervous system (PNS).

The SNS innervates different tissues in order to provide physiological regulation of such organs.

In the salivary glands, the SNS stimulates the release of noradrenaline, thereby resulting in vasoconstriction and a decreased production of saliva.

In conclusion, the statement 'sympathetic nervous system activation constricts arteries found within the salivary glands' describes the activation of autonomic nervous system function in the circulatory system (Option c).

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