Facial Muscles

Front

What is the origin and insertion of the nasalis muscle?

Back

Originates on the maxilla lateral to the nose and inserts on the bridge of the nose.

Front

Which muscle is responsible for elevating the jaw and is commonly known for its role in chewing?

Back

Masseter.

Front

What is the function of the buccinator muscle?

Back

It compresses the cheek against the teeth and helps in chewing.

Front

Which muscle pulls the corner of the mouth inferiorly and laterally?

Back

Depressor Anguli Oris.

Front

What is the primary function of the orbicularis oris muscle?

Back

It controls movements of the mouth and lips.

Front

Identify the muscle that is responsible for closing the eyelids.

Back

Orbicularis oculi.

Front

What is the role of the zygomaticus major muscle?

Back

It elevates the corner of the mouth, contributing to smiling.

Front

Which muscle is involved in frowning?

Back

Depressor Anguli Oris.

Front

What is the primary action of the frontalis muscle?

Back

It raises the eyebrows and wrinkles the forehead.

Front

What is the insertion point of the orbicularis oris muscle?

Back

It inserts into the skin around the mouth.