Anterior Neck - Suprahyoid Flashcards Preview

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Flashcards in Anterior Neck - Suprahyoid Deck (21)
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1

Digastric - Anterior Belly Origin

Digastric fossa of mandible

2

Digastric - Anterior Belly Insertion

Intermediate tendon to body and greater horn of hyoid

3

Digastric - Anterior Belly Innervation

Nerve to mylohyoid, a branch of inferior alveolar nerve

4

Digastric - Anterior Belly Action

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

5

Digastric - Posterior Belly Origin

Mastoid notch of temporal bone

6

Digastric - Posterior Belly Insertion

Intermediate tendon to body and greater horn of hyoid

7

Digastric - Posterior Belly Innervation

Digastric branch of (preparotid) facial nerve (CN VII)

8

Digastric - Posterior Belly Action

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

9

Mylohyoid Origin

Mylohyoid line of mandible

10

Mylohyoid Insertion

Mylohyoid raphe and body of hyoid

11

Mylohyoid Innervation

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

12

Mylohyoid Action

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

13

Stylohyoid Origin

Stylohyoid process of temporal bone

14

Stylohyoid Insertion

Body of hyoid

15

Stylohyoid Innervation

Stylohyoid branch of (preparotid) facial nerve (CN VII)

16

Stylohyoid Action

Elevates and retracts hyoid, thus elongating floor of mouth

17

hypoglossal nerve and ansa cervicalis C1 run blank but blank

together, are separate

18

the blank artery is winding because the TMJ is so active

facial

19

the scalenes are all innervated by blank

anterior rami

20

same innervation means similar blank

development

21

blank emerges between anterior and middle scalene

brachial plexus