Parotid Gland Area Etc.

Question 1

What branch of the facial nerve penetrates the parotid gland but is not given off within it.?

Answer 1

The chorda tympani nerve

Question 2

Preganglionic parasympathetic efferent fibers from the ninth cranial nerve will synapse in which ganglion?

Answer 2

Otic ganglion or Arnold’s ganglion

Question 3

The parasympathetic pathway from the ninth cranial nerve will innervate what target?

Answer 3

Parotid gland

Question 4

What action will parasympathetic innervation have on the parotid gland?

Answer 4

vasodilation of the arteries resulting in a thinner, watery or whey-like saliva

Question 5

What is the origin for the sympathetic pathway to the parotid gland?

Answer 5

Lateral horn/intermediolateral cell column T1, T2

Question 6

Sympathetic stimulation of the parotid gland will result in what events?

Answer 6

vasoconstriction of blood vessels, limited availability of water to secretory units, thicker mucous-like product formed in glandular lumen

Question 7

Parasympathetic stimulation of targets in the parotid gland will result in what events?

Answer 7

vasodilation of blood vessels, increased availability of water to secretory units, thinner more watery product in the lumen; constriction of myoepithelial cells leading to release of product from secretory lumen into the duct system