Combined Muscles

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Questions and Answers

The action of which muscle is to compress and protrude the lips?

  • Occipitofrontalis
  • Mentalis
  • Orbicularis Oculi
  • Orbicularis Oris (correct)

The Depressor Anguli Oris originates beneath the angle of the mandible, and inserts into the corner of the mout

True (A)

The Levator Labii Superioris originates from the canine fossa and elevates the corner of the mouth

False (B)

Which muscle is innervated by the cervical branch of the facial nerve?

<p>Platysma (B)</p> Signup and view all the answers

Which muscle is supplied by the masseteric nerve?

<p>Masseter (D)</p> Signup and view all the answers

Which muscle is supplied by the temporal branch of the facial nerve?

<p>Occipitofrontalis (C)</p> Signup and view all the answers

Which muscle of facial expression is being described: originates from the bridge of the nose, supplied by the temporal artery and pulls the eyebrows medially?

<p>Corrugator (B)</p> Signup and view all the answers

Which muscle of mastication is being described: fan shaped muscle, inserts into the coronoid process and ramus of the mandible, elevates the mandible, supplied by the deep temporal nerve

<p>Temporalis (C)</p> Signup and view all the answers

Which muscle of mastication is being described: short thick muscles originating from 2 heads, upper head originates from the greater wing of the sphenoid bone, inserts into the pterygoid fovea, opens and protrudes the mouth.

<p>Lateral Pterygoid (B)</p> Signup and view all the answers

Which of these is not a movement of the mandible?

<p>Abduction (C)</p> Signup and view all the answers

Flashcards

Orbicularis Oris action

Compresses and protrudes the lips.

Depressor Anguli Oris

Muscle originating beneath the angle of the mandible and inserting into the corner of the mouth.

Platysma innervation

Innervated by the cervical branch of the facial nerve.

Masseter nerve supply

Supplied by the masseteric nerve.

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Occipitofrontalis nerve supply

Supplied by the temporal branch of the facial nerve.

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Corrugator action

Originates from the bridge of the nose, supplied by the temporal artery and pulls the eyebrows medially.

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Temporalis muscle

Fan-shaped muscle inserting into the coronoid process and ramus of the mandible; elevates the mandible, supplied by the deep temporal nerve.

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Lateral Pterygoid

Short, thick muscle originating from 2 heads, inserting into the pterygoid fovea, opens and protrudes the mouth.

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Mandible: Non-Movement

Movement of the mandible (lower jaw) that does not occur.

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