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MS 2 > Lecture 20: Mm of the Ant. Neck ACTIONS > Flashcards

Lecture 20: Mm of the Ant. Neck ACTIONS Flashcards

1
Q

What is the action of SCM?

A

Flexion
ipsilateral lateral flex and rotation to opposite side of the CS
capital extension
elevates sternum and clavicle during forced inspiration

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2
Q

What is the action of Mylohyoid?

A

Elevates hyoid bone and floor of mouth (swallowing)
Depresses mandible

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3
Q

What is the action of Digastric?

A

Elevates hyoid bone
Depresses mandible

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4
Q

What is the action of Geniohyoid?

A

Elevates hyoid bone
Depresses mandible

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5
Q

What is the action of Stylohyoid?

A

Elevates and retracts hyoid bone
no action on mandible

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6
Q

What is the action of Thyrohyoid?

A

Elevates thyroid cartilage (larynx)
Depresses hyoid bone

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7
Q

What is the action of Omohyoid?

A

Depresses hyoid bone

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8
Q

What is the action of Sternohyoid?

A

Depresses hyoid bone

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9
Q

What is the action of Sternothyroid?

A

Depresses thyroid cartilage (larynx)

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10
Q

What is the action of Anterior Scalene?

A

Elevates 1st rib during forced inspiration
lateral flexion
flexion
contralateral rotation

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11
Q

What is the action of Middle Scalene?

A

Elevates 1st rib during forced inspiration
lateral flexion
flexion
contralateral rotation

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12
Q

What is the action of Posterior Scalene?

A

Elevates 2nd rib during forced inspiration
lateral flexion
flexion
contralateral rotation

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13
Q

What is the action of Longus Capitus?

A

Flexion
Lateral flexion of the head and CS

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14
Q

What is the action of Longus Colli

A

Flexion
Lateral flexion of the head and CS

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MS 2 (39 decks)

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