Muscular System (Major Muscles of the body)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Orbicularis oculi | circular muscle around eye | closes eyes; winking, blinking, and squinting
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| Levator palpebrae superioris | origin on bony orbit of eye; inserts on upper eyelid | Elevates eyelid (opens eye)
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| Orbicularis oris | Encircles mouth | closes, purses lips; kissing muscle
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| Buccinator | Horizontal cheek muscle; origin on maxilla and mandible; inserts on orbicularis oris | flattens cheeks; trumpeter's muscle; whistling muscle; helps with chewing by positioning food between teeth
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| Zygomaticus | Origin on cheekbone; inserts on corner of mouth | elevates corner of mouth; smiling muscle
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| Platysma | Origin in fascia of shoulder and anterior chest; inserts on mandible, angle of lower mouth, soft tissue of lower face | pouting muscle; "open your mouth wide" muscle
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| Temporalis | flat fan-shaped muscle over temporal bone (origin); inserts on mandible | closes jaw; retracts jaw
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| Masseter | covers lateral part of lower jaw; origin on maxilla, zygomatic process of the temporal bone; inserts on mandible | closes jaw; retracts jaw
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| Sternocleidomastoid | extends along each side of neck; strong narrow muscles that extend obliquely from sternum and clavicle; origin upward to mastoid process of temporal bone (insertion) | contraction of both muscles flexes the head at the neck; contraction of one rotates head toward opposite side
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| Trapezius | large, flat, trapezoid-shaped muscle on back of neck and upper back; origin on occipital bone, C7, and all thoracic vertebrae; inserts on clavicle and scapula | hyperextends head so as to look up in the sky; lateral flexion of head
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| Scalenes | Origin on cervical vertebrae (C1-C7); insert on rib 1 and 2 | act synergistically with sternocleidomastoid to flex neck
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| Frontalis | Flat muscle covering forehead; origin on cranial aponeurosis; inserts on skin above eyebrows | Raises eyebrows; surprised look; wrinkles forehead
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Ekane34
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