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Gross anatomy test 4 > Anterior cervical muscles > Flashcards

Anterior cervical muscles Flashcards

0
Q

Mylohyoid Insertion

A

Mylohyoid raphe and body of hyoid

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1
Q

Mylohyoid Origin

A

Mylohyoid line of the mandible

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2
Q

Mylohyoid Innervation

A

Nerve to Mylohyoid, a branch of inferior alveolar nerve (from mandibular nerve, CN V3)

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3
Q

Mylohyoid actions

A

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

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4
Q

Geniohyoid Origin

A

Inferior mental spine of mandible

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5
Q

Geniohyoid Insertion

A

Body of hyoid

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6
Q

Geniohyoid Innervation

A

C1 via hypoglossal nerve CN XII

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7
Q

Geniohyoid action

A

Pulls hyoid anterosuperiorly; shortens floor of mouth; widens pharynx

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8
Q

Stylohyoid Origin

A

Styloid process of temporal bone

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9
Q

Stylohyoid Insertion

A

Body of hyoid

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10
Q

Stylohyoid innervation

A

Stylohyoid branch of facial nerve CN VII

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11
Q

Stylohyoid action

A

Elevates and retracts hyoid, thus elongating floor of mouth

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12
Q

Digastric origin

A

Anterior belly: Digastric fossa of mandible

Posterior belly: Mastoid notch of temporal bone

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13
Q

Digastric Insertion

A

Intermediate tendon to body and greater horn of hyoid

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14
Q

Digastric innervation

A

Anterior belly: nerve to mylohyoid, a branch of inferior alveolar nerve
Posterior belly: Digastric branch of fascial nerve CN VII

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15
Q

Digastric action

A

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

16
Q

Sternohyoid Origin

A

Manubrium of sternum and medial end of clavicle

17
Q

Sternohyoid Insertion

A

Body of hyoid

18
Q

Sternohyoid innervation

A

C1-C3 by a branch of Ansa cervicalis

19
Q

Sternohyoid action

A

Depresses hyoid after elevation during swallowing

20
Q

Omohyoid Origin

A

Superior border of scapula near suprascapular notch

21
Q

Omohyoid insertion

A

Inferior border of hyoid

22
Q

Omohyoid innervation

A

C1-C3 by a branch of ansa cervicalis

23
Q

Omohyoid Action

A

Depresses, retracts, and steadies hyoid

24
Q

Sternothyroid origin

A

Posterior surface of manubrium of sternum

25
Q

Sternothyroid insertion

A

Oblique line of thyroid cartilage

26
Q

Sternothyroid innervation

A

C2 and C3 by a branch of ansa cervicalis

27
Q

Sternothyroid action

A

Depresses hyoid and larynx

28
Q

Thyrohyoid Origin

A

Oblique line of thyroid cartilage

29
Q

Thyrohyoid insertion

A

Inferior border of body and greater horn of hyoid

30
Q

Thyrohyoid Innervation

A

C1 via hypoglossal nerve

31
Q

Thyrohyoid action

A

Depresses hyoid and elevates larynx

Gross anatomy test 4 (8 decks)

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