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Muscles bio125
head/face/thorax and shoulder muscles
| Question | Answer |
|---|---|
| Orbicularis Oculi | muscle around eye(closes eyes) |
| Orbicularis Oris | under mouth(closes lips) |
| Temporalis | skull above ear(closes jaw) |
| Zygomaticus | raises lateral corners of mouth upward (smiling muscle) |
| Sternocleidomastoid | neck(flexes and laterally rotates head) |
| Masseter | jaw(prime mover of jaw closure) |
| Buccinator | between zygomaticus & masseter (compresses cheek) |
| Trapezius | side of neck on shoulders (Stabilizes,raises,retracts, and rotates scapula) |
| Pectoralis major | pecks(arm flexion,rotates arm medially,adducts arm) |
| Pectoralis minor | under pecks major(draws scapula forward& downward) |
| Deltoid | shoulder muscle(arm flexion,rotates arm,& adducts arm) |
| Latissimus dorsi | back below scapula(extension of humerous) |
| Supraspinatus | above spine of scapula(initiates abduction) |
| infraspinatus | deep to deltoid(rotates humerous laterally) |
| Teres major | by armpit posterior(extends,medially rotates, and adducts humerus) |
| Internal intercostals | superior muscles of ribs(draw ribs together and depress rib cage) |
| External intercostals | inferior muscles of ribs(pull ribs toward one another to elevate rib cage) |
Created by:
rebecca1121
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