Table 7.1 : Muscles Of The Head And Neck Flashcards by Joslin Roz | Brainscape

Q

Origin of frontalis

A

Gales aponeurotica

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Q

Insertion of Frontalis

A

Skin above supraorbital margin

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Q

Action of Frontalis

A

Draws scalp anteriorly; raises eyebrows; and wrinkles forehead

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Q

Origin of occipitalis

A

Mastoid and occipital

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Q

Insertion of occipitalis

A

Gales aponeurotica

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Q

Action of occipitalis

A

Draws scalp posteriorly

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Q

Origin of Orbicularis oculi

A

Orbit

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Q

Insertion of Orbicularis oculi

A

Circular path of orbit

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Q

Action of Orbicularis oculi

A

Closes eye

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Q

Origin of zygomaticus major

A

Zygomatic bone

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Q

Insertion of zygomaticus major

A

Angle of mouth

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Q

Action of zygomaticus major

A

Raises angle of mouth, as in smiling

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Q

Origin of zygomatic minor

A

Zygomatic bone

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Q

Insertion of zygomatic minor

A

Upper lip

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Q

Action of zygomaticus minor

A

Elevated upper lip and exposes maxillary teeth

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Q

Origin of Buccinator

A

Maxilla and Mandible

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Q

Insertion of Buccinator

A

Angle of mouth

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Q

Action of Buccinator

A

Compress cheeks as in blowing or whistle

Q

Origin of Orbicularis oris

A

Maxilla and Mandible

Q

Insertion of Orbicularis Oris

A

Angle of mouth

Q

Action of Orbicularis Oris

A

Closes mouth and puckers the lips

Q

Orgin of Levator Labii superioris

A

Maxilla

Q

Insertion of Levator Labii superioris

A

Angle of mouth

Q

Action of Levator Labii superioris

A

Elevates upper lip

Q

Origin of masseter

A

Zygomatic arch

Q

Insertion of Masseter

A

Mandible

Q

Action of masseter

A

Raises jaw

Q

Origin of Temporalis

A

Temporal bone

Q

Insertion of temporalis

A

Mandible

Q

Action of temporalis

A

Elevates mandible and closes jaw

Q

Origin of Medial Pterygoid

A

Inferior aspect of skull

Q

Insertion of medial Pterygoid

A

Mandible

Q

Action of medial Pterygoid

A

Raises jaw

Q

Origin of lateral Pterygoid

A

Inferior aspect of skull

Q

Insertion of lateral Pterygoid

A

Mandible

Q

Action of lateral Pterygoid

A

Lower jaw

Q

Origin of sternocleidomastoid

A

Sternum and clavicle

Q

Insertion of sternocleidomastoid

A

Mastoid process of temporal

Q

Action of sternocleidomastoid

A

Both muscles: flex head

One muscle: rotates head toward opposite shoulder

Q

Origin of Trapezius

A

Skull and Vertebral column

Q

Instertion of trapezius

A

Scapula

Q

Action of Trapezius

A

Extends head and rotates scapula

Q

Epicranius muscles

A

Frontalis

Occipitalis