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Anatomy 344 - Head and neck > Suprahyoid muscles > Flashcards

Suprahyoid muscles Flashcards

1
Q

Suprahyoid muscles
Made up of 4 muscles

A

Mylohyoid
Geniohyoid
Stylohyoid
Digastric

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2
Q
A
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3
Q
A

mylohyoid

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4
Q

mylohyoid origin

A

mylohyoid line of mandible

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5
Q

mylohyoid insertion

A

mylohyoid raphe and body of hyoid

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6
Q

mylohyoid innervation

A

Nerve to mylohyoid

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7
Q

mylohyoid actions

A

elevates hyoid, floor of mouth and tongue during swallowing and speaking

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8
Q
A

Geniohyoid

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9
Q

Geniohyoid origin

A

Inferior mental spine of mandible

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10
Q

Geniohyoid insertion

A

Body of hyoid

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11
Q

Geniohyoid innervation

A

C1 - via hypoglossal nerve

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12
Q

Geniohyoid actions

A

Pulls hyoid anterosuperiorly
Shortens floor of mouth
Widens pharynx

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13
Q
A

Stylohyoid

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14
Q

Stylohyoid origin

A

Stylohyoid process of temporal bone

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15
Q

Stylohyoid insertion

A

Body of hyoid

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16
Q

Stylohyoid innervation

A

Stylohyoid branch of facial nerve

17
Q

Stylohyoid action

A

Elevates and retracts hyoid, thus elongating floor of mouth

18
Q
A

Digastric

19
Q

Digastric origin

A

Anterior belly: Digastric fossa of mandible

Posterior belly: mastoid notch of temporal bone

20
Q

Digastric insertion

A

Intermediate tendon to body and greater horn of hyoid

21
Q

Digastric innervation

A

Anterior belly: nerve to mylohyoid

Posterior belly: Digastric branch of facial nerve

22
Q

Digastric actions

A

Working with infrahyoid muscles, depresses mandible against resistance, elevates and steadies hyoid during swallowing and speaking

Anatomy 344 - Head and neck (10 decks)

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