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Head &Neck Muscles
definations, and some general muscles in each group
| Word | Definition |
|---|---|
| frontalis | of the forhead |
| occipitalis | at the back of the head |
| occipitofrontalis | frontalis and occipitalis, attached across the top of the skull by the galea aponeurotica |
| orbicularis oculi | closes the eyelid |
| levator palpebrae superioris | opens eyelid |
| other muscles of eye and nose areas | corrugator supercilii, procerus, and nasalis |
| sphincter(orbicularis oris) | surrounds the mouth |
| 5 muscles approach the orbicularis oris | levator labii superioris, zygomaticus minor, zygomaticus major, levator anguli oris, and resorius |
| draw the lower lip down | depressor anguli oris, depressor libii inferioris, and pair of mentalis muscles |
| burccinator muscle | cheek helps in blowing, sucking and shewing, pushing food against the teeth |
| platysma | under the chin depresses the mandible, widens mouth, and tenses the skin of the neck |
| extrinsic muscles | connect the tounge to other structures in the head and neck genioglossus, hyoglossus, styloglossus, and palatpglossus |
| glossus | back of throat |
| muscles of mastication | temporalis, masseter, and medial and lateral pterygoid muscles |
| hyoid muscles | superior to hyoid-digastiric, geniohyoid, mylohyoid, and stylohyoid. inferior-omohyoid, sternohyoid, and thyrohyoid |
| principle flexor of neck | sternocleidomastioid-keeps head on shoulder, and three scalenes |
| extensors of head | located in the back of the neck trapezius, splenius capitis, and semispinalis capitis |
Created by:
hisangel081103
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