PATHOLOGY

PATHOLOGY MCQ

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which Nervous system is involved in increasing arousal levels to deal with a threat/stressor?
A
Sympathetic
B
Parasympathetic
C
Somatic
D
Central
Explanation: 

Detailed explanation-1: -With regards to the nervous system, stress will activate the sympathetic nervous system which in turn activates the adrenal glands. The parasympathetic nervous system facilitates the recovery of the body after the acute stress-induced crisis is over.

Detailed explanation-2: -Stress, the Sympathetic Nervous System and the Parasympathetic Nervous System. The ANS has two divisions, the SNS and the parasympathetic nervous system (PNS). In response to stressors, the hypothalamus secretes corticotropin-releasing hormone (CRH) and arginine vasopressin.

Detailed explanation-3: -The sympathetic nervous system (SNS) of the CNS that is involved when a stressor is encountered is the SNS stimulation of the adrenal glands, which, releases the catecholamines epinephrine (adrenaline) and norepinephrine (noradrenaline).

Detailed explanation-4: -What Happens During the Fight-or-Flight Response. In response to acute stress, the body’s sympathetic nervous system is activated due to the sudden release of hormones. The sympathetic nervous systems stimulate the adrenal glands triggering the release of catecholamines, which include adrenaline and noradrenaline.

There is 1 question to complete.