Muscles of The Head & Trunk (Action & Nerve) Flashcards
1
Q
Buccinator Action & Nerve?
A
Action= Compress Check Nerve= Facial, CN VII
2
Q
Diaphragm Action & Nerve?
A
Action= Pulmonary inspiration Nerve= Phrenic
3
Q
Erector spinae Action & Nerve?
A
Action= Extends vertebral column Nerve= Spinal nerves in segments
4
Q
Frontalis Action & Nerve?
A
Action= Raises eyebrows Nerve= Facial, CN VII
5
Q
Masseter Action & Nerve?
A
Action= Elevate mandible Nerve= Trigeminal CN V
6
Q
Oblique (external) Action & Nerve?
A
Action= Compress & rotate abdomen Nerve= Spinal segmental
7
Q
Oblique (internal) Action & Nerve?
A
Action= Compress & rotate abdomen Nerve= Spinal segmental
8
Q
Occipitalis Action & Nerve?
A
Action= Moves scalp posteriorly Nerve= Facial, CN VII
9
Q
Orbicularis oculi Action & Nerve?
A
Action= Closes eyelids Nerve= Facial, CN VII
10
Q
Orbicularis oris Action & Nerve?
A
Action= Closes & protrudes lips Nerve = Facial, CN VII
11
Q
Platysma Action & Nerve?
A
Action= Depress jaw Nerve= Facial, CN VII
12
Q
Rectus abdominis Action & Nerve?
A
Action= Flexes "crunches" trunk Nerve= Lower intercostals & segmentals
13
Q
Serratus posterior inferior Action & Nerve?
A
Action= Depresses ribcage Nerve= Thoracic segmentals
14
Q
Sternocleidomastoid Action & Nerve?
A
Action= Rotate & Flex neck Nerve= Accessory, CN XI
15
Q
Temporalis Action & Nerve?
A
Action= Elevate mandible Nerve= Trigeminal, CN V
