1103 - Ch 5: Muscles of the Head, neck & face
About this set
Created by:
taylrd on September 10, 2011
Description:
A, O, I, N - muscles
Classes:
Extra Kinesiology Resources, Broward/Edison PTA Group 1st Year
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25 terms
Terms | Definitions |
|---|---|
 sternocleidomastoid (action) | unilaterally: laterally flex the head and neck to same side. Rotate the head and neck to opposite side. bilaterally: flex the head. Assist in inhalation (elevation of rib cage). |
| sternocleidomastoid (origin) | sternal head: top of manubrium. clavicular head: medial 1/3 of the clavical. |
| sternocleidomastoid (insertion) | Mastoid process of the temporal bone and the lateral portion of superior nuchal line of occiput. |
| sternocleidomastoid (nerve) | spinal accessory. |
| temporalis (action) | elevate the mandible, (temporomandibular joint) retract the mandible at the TMJ example: clench your jaw |
| temporalis (nerve) | deep temporal branch of mandibular nerve. |
| medial pterygoid (action) | unilaterally: laterally deviate the mandible to the opposite side. bilaterally: elevate the mandible and protract the mandible. |
| medial pterygoid (nerve) | Trigeminal. (V) |
| lateral pterygoid (action) | unilaterally: laterally deviates themandible to the opposite side. bilaterally: protract the mandible. |
| lateral pterygoid (nerve) | Trigeminal. (V) |
| scalenes (anterior, middle, posterior) (action) | elevate upper ribs during inhalation. |
| platysma (action) | assists in depression of the mandible at the TMJ. tighten the fascia of the neck. |
| platysma (nerve) | facial. |
| buccinator (action) | tightens corners of lips and keeps food between molars during mastication. |
| buccinator (nerve) | Trigeminal. |
| corrugator (action) | draws eyebrows medially and inferiorally. (frown muscle) |
| corrugator (nerve) | facial. |
| masseter (action) | elevates mandible at TMJ. |
| masseter (nerve) | mandibular nerve. |
| occipitofrontalis (action) | occipitalis: anchor and retract the galea posteriorly. frontalis: raise the eyebrows and wrinkle forehead |
| occipitofrontalis (nerve) | facial. |
| orbicularis oris (action) | closes the mouth and shapes the lips. |
| orbicularis oris (nerve) | facial. |
| orbicularis oculi (action) | closes the eyelid. |
| orbicularis oculi (nerve) | facial. |
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