Question

How many pairs of salivary glands does a rat have?

• A. 2
• B. 3
• C. 4
• D. 5

Hint:

Rats and most mammals possess three pairs of salivary glands: parotid, submandibular, and sublingual, each contributing to different aspects of digestion and mouth moisture.

Answer 1

The Correct Option is B

Rats, like most mammals, possess three pairs of salivary glands. These glands are responsible for secreting saliva, which aids in the digestion of food, keeps the oral cavity moist, and initiates the breakdown of food via enzymatic action.

The three pairs of salivary glands in rats are:

1. Parotid glands: Located near the ears, these glands produce a watery secretion that helps in the moistening of food.
2. Submandibular glands: Situated under the lower jaw, these glands secrete saliva that contains enzymes to aid in digestion.
3. Sublingual glands: Found under the tongue, these glands produce a mucous-type secretion.

Thus, rats have three pairs of salivary glands, making the correct answer (B) 3.