Musculature of the Scalp Flashcards
1
Q
What is the muscle of the scalp?
A
epicranius or occiptofrontalis
2
Q
What muscle bellies form the epicranius?
A
- 2 frontalis bellies
- 2 occipitalis bellies
3
Q
What is the galea aponeurotica?
A
a midline fibrous layer uniting the bellies of the epicranius
4
Q
What innervates the epicranius?
A
- temporal branches of the facial nerve to the frontalis
- posterior auricular branches of the facial nerve to the occipitalis
5
Q
What serves as the bony attachment for the epicranius?
A
- lateral 2/3 of the highest nuchal line on the occiptal bone
- mastoid process of the temporal bone
6
Q
What muscles are continuous with the frontalis belly?
A
- procerus
- corrugator supercilii
- orbital part of orbicularis oculi
7
Q
What is the function of the epicranius?
A
- pulls the scalp backward
- wrinkles the forehead
- raises the eyebrows
