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Major Muscles of the Human Head
Major Muscles of the Human Head
15
Biology
Undergraduate 4
03/25/2014

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Term
Epicranius-frontal belly :: Origin
Definition
Epicranial aponeurosis
Term
Epicranius-frontal belly :: Insertion
Definition
Skin of the eyebrows
Term
Epicranius-frontal belly :: Action
Definition
Raises eyebrows
Term
Orbicularis oculi :: Origin
Definition
Frontal and maxillary bones
Term
Orbicularis oculi :: Insertion
Definition
Encircles orbit; inserts into tissue of eyelid
Term
Orbicularis oculi :: Action
Definition
Closes eye
Term
Orbicularis oris :: Origin
Definition
Muscles around the mouth
Term
Orbicularis oris :: Insertion
Definition
Encircles mouth, inserts into corners of mouth
Term
Orbicularis oris :: Action
Definition
Closes lips; protrudes lips
Term
Temporalis :: Origin
Definition
Temporal fossa
Term
Temporalis :: Insertion
Definition
Coronoid process of mandible
Term
Temporalis :: Action
Definition
Closes jaw; elevates & retracts mandible
Term
Masseter :: Origin
Definition
Zygomatic arch & maxilla
Term
Masseter :: Insertion
Definition
Angle and ramus of mandible
Term
Masseter :: Action
Definition
Closes jaw
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