Orbicularis Oris, Orbicularis Oculi, and Platysma Are Part of the Group

question 145

Multiple Choice

Orbicularis oris, orbicularis oculi, and platysma are part of the group of muscles known as muscles of

• A)facial expression.
• B)mastication.
• C)the extra-ocular region.
• D)the tongue.
• E)the pharynx.

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Definitions:

Crown Gear Hub

A central part of a crown gear, connecting the gear to a shaft or other mounting mechanism.

Steering Knuckles

Pivot points in a vehicle's suspension system that connect the wheel hubs to the suspension and steering components, allowing wheels to turn.

Steer Axle

The front axle of a vehicle, which is connected to the steering mechanism, allowing the driver to control the vehicle's direction.