Term
| Epicranial(Occipital-frontalis)- action/location |
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Definition
| On scalp, two bellies, when both contract the eyebrows raise, when just front belly contracts the eyebrows "frown" |
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Term
| Orbicularis Oculi-action/location |
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Definition
| surrounds eye, closes the eye |
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Term
| Currugator Supercilii-action/location |
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Definition
| over eyebrows, pull together/down to "frown" |
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Term
| Orbicularis oris-action/location |
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Definition
-surrounds mouth
-allows it to close, purse, pout, grimace |
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Term
| Levator labii superioris-action |
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Definition
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Term
| Levator labii superioris alaeque-action/location |
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Definition
| raises upper lip, flares nostrils, mesial to the Levator labii superioris |
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Term
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Definition
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Term
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Definition
| raises upper lip, assists in smiling |
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Term
| Lavator anguli oris-action |
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Definition
| pulls up corner of the mouth for smile |
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Term
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Definition
| pulls angle of the mouth laterally, shortens cheek |
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Term
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Definition
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Term
| Depressor anguli oris-action |
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Definition
| pulls corner of the mouth down |
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Term
| Depressor labii inderioris-action |
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Definition
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Term
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Definition
| pulls skin on chin up, causes lower lip to protrude, narrows vestibule area |
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Term
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Definition
| muscle of the pharynx, seen from back |
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Term
| Pharyngeal constrictors-location |
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Definition
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Term
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Definition
| pulls corner of the mouth down, pulls skin on chest up |
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Term
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Definition
| raises and pulls shoulders back, if only upper part contracts then if extends and turns head to one side |
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Term
| Sternocleidomastoid-action |
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Definition
| if both sides contract the head will flex, if only once side contracts head rotates and tilts to opposite side |
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Term
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Definition
| elevation of mandible, helps with chewing |
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Term
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Definition
| elevation and retraction of the mandible |
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Term
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Definition
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Term
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Definition
| if both sides contract the mandible protrudes, if one side contracts the mandible laterally deviates |
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Term
| What are the two bellies of the digastric muscle? Location? |
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Definition
| anterior and posterior belly, under the chin |
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Term
| mylohyoid-location/action |
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Definition
| helps form floor of the mouth, elevates tongue |
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Term
| Geniohyoid-origin/location |
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Definition
-originates in the genial tubercles
-floor of the mouth |
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Term
| What are the 4 suprahyoid muscles? What is their function? |
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Definition
1.digastric
2.mylohyoid
3.geniohyoid
4.stylohyoid
*above the hyoid bone, elevate hyoid and larynx when swallowing* |
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Term
| What are the 4 infrahyoid muscles? What is their action? |
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Definition
1.omohyoid
2.sternohyoid
3.sternothyroid
4.thyrohyoid
*below hyoid bone, main function is to depress the hyoid* |
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Term
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Definition
| protrudes tongue, deepens portions of the tongue |
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Term
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Definition
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Term
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Definition
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Term
| Palatoglossus-location/action |
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Definition
-anterior pillar
-elevates and arches tongue, depresses soft palate towards tongue |
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Term
| palatopharyngeus- location/action |
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Definition
-posterior pillar
-moves palate posterioinferiorly, and pharyngeal wall anterior-superiorly |
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Term
| Levator veli palatini-action |
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Definition
| raises soft palate to constrict posterior pharyngeal wall |
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Term
| Tensor veli palatini-action |
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Definition
| tenses and slightly lowers soft palate |
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Term
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Definition
| soft palate closely adapts to posterior pharyngeal wall |
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Term
| What are the 4 muscles of mastication? |
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Definition
1.massetor
2.temporalis
3.medial pterygoid
4.lateral pyerygoid |
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Term
| What are the two groups of muscles of the tongue? Where are they? |
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Definition
extrinsic-under tongue
intrinsic-make up tongue |
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Term
| What are the three extrinsic muscles of the tongue? |
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Definition
1.genioglossus
2.hyoglossus
3.styloglossus |
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Term
| What are the 4 intrinsic muscles of the tongue? |
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Definition
1.superior longitudinal
2.inferior longitudinal
3.transverse
4.vertical |
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