Musculature of the Scalp Flashcards Preview

Spinal Anatomy I - Exam 3 > Musculature of the Scalp > Flashcards

Flashcards in Musculature of the Scalp Deck (7):
1

What is the muscle of the scalp?

epicranius or occiptofrontalis

2

What muscle bellies form the epicranius?

- 2 frontalis bellies
- 2 occipitalis bellies

3

What is the galea aponeurotica?

a midline fibrous layer uniting the bellies of the epicranius

4

What innervates the epicranius?

- temporal branches of the facial nerve to the frontalis
- posterior auricular branches of the facial nerve to the occipitalis

5

What serves as the bony attachment for the epicranius?

- lateral 2/3 of the highest nuchal line on the occiptal bone
- mastoid process of the temporal bone

6

What muscles are continuous with the frontalis belly?

- procerus
- corrugator supercilii
- orbital part of orbicularis oculi

7

What is the function of the epicranius?

- pulls the scalp backward
- wrinkles the forehead
- raises the eyebrows

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