Specific Gravity Is Defined as Mass Per Unit Volume

question 18

True/False

Specific gravity is defined as mass per unit volume.

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Definitions:

Masseter

The masseter muscle is a facial muscle that plays a key role in mastication (chewing) by elevating the mandible (lower jaw).

Zygomaticus Major

A muscle of facial expression that draws the angle of the mouth superiorly and posteriorly.

Orbicularis Oris

A circular muscle around the mouth that controls the movements of the mouth and lips.

Buccinator

A muscle of the cheek that aids in chewing and is involved in the compression of the cheeks against the teeth.