PATHOLOGY MCQ
NERVOUS SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Lack of salivation
|
|
sympathethic
|
|
|
parasympathetic
|
|
|
Either A or B
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -Sympathetic stimulation results in the release of noradrenaline, which acts upon alpha-and beta-adrenergic receptors. This results in the following effects: Decreased production of saliva by acinar cells. Increased protein secretion.
Detailed explanation-2: -Sympathetic stimulation will increase alpha receptor stimulation by norepinephrine which causes smooth muscle contraction and increases volume flow and amylase output.
Detailed explanation-3: -Cranial Nerve 9-Glossopharyngeal (IX) The motor component of this nerve controls the acts of swallowing and salivation, and the dilation of blood vessels.
There is 1 question to complete.