The nerve supplying submandibular gland is
a. V
b. VII
c. IX
d. XII
The Correct option is B
Explanation with High Yield Facts:
Parasympathetic innervation to the submandibular glands is provided by the superior salivatory nucleus via the chorda tympani, a branch of the facial nerve that synapses in the submandibular ganglion after which it follows the Lingual nerve leaving this nerve as it approaches the gland. Increased parasympathetic activity promotes the secretion of saliva.
The sympathetic nervous system regulates submandibular secretions through vasoconstriction of the arteries that supply it. Increased sympathetic activity reduces glandular blood flow, thereby decreasing salivary secretions and producing enzyme rich serous saliva.
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