Term
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Definition
| compresses cheek; pushes food between teeth; expels air or liquid from mouth; creates suction |
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Term
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Definition
| depresses mandible; opens and widens mouth; tenses skin of neck |
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Term
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Definition
| elevates mandible for biting and chewing ; retracts mandible |
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Term
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Definition
| elevates mandible for bitin gand chewing; cuauses soe laterla excursion of mandible |
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Term
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Definition
| contraction of either one draws head down and toward teh side opposite the contracting muscle; contraction of both draws head forward and down, as in looing between the feet |
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Term
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Definition
| prime moveer of inspiration; compresses abdominal vicera to aid in such processes as defacation, urination , and childbirth |
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Term
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Definition
when scalens fix rib 1, external intercostals draw ribs 2-12 upward and outward to expand thoracc cavity and inflate lungs
lateral to internal |
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Term
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Definition
| when quadratus lumborum and other muscles fix rib 13, internal intercostals draw ribs downward and inward to compress thoracic cavity and force air from lungs; not need for relaxed expiration |
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Term
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Definition
| supports abdominal visera; flexes waist as in sit-ups; depresses ribs; stabilizes pelvis during walking; increases intra-abdominal pressure to aid in urination, defacation and childbirth |
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Term
| external abdominal oblique |
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Definition
flexes waiste as in sit ups; flexes and rotates vertebral column
is the most superficial of abdomen wall
goes downward |
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Term
| internal abdominal oblique |
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Definition
similar to external oblique
flexes waist as in sit ups and flexes and rotates the vertebral column
runs upward and is deep to teh external abdolminal oblique |
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Term
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Definition
compresses abdomen, increases intra-abdominal pressure and flexes the vertebral column
deep to obliques |
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Term
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Definition
| draws corner of mouth laterall as in grimacing |
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Term
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Definition
| protracts and depresses scapula when ribs are fixed; elevates ribs when scapula is fixed |
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Term
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Definition
| prime mover of shoulder flexion |
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Term
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Definition
| adducts and medially rotates humerous; depresses pectoral girdle; elevates ribs; aids in climbing, pushing and throwing |
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Term
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Definition
| adducts and medially rotates humerous; extends shoulder joint; produces strong downward strokes of arm, as in hammering or swimming; pulls body upward as in climbing |
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Term
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Definition
| leteral fibers abduct humerous; anterior fibers flexa nd medially rotate it; posterior fibers extend and laterally rotate it |
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Term
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Definition
| adducts and medailly rotates humerous; extends shouder joint |
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Term
| teres minor is _____ to teres major |
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Definition
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Term
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Definition
| arm pit muscle adducts arm; flexes shoulder joint |
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Term
RC MUSCLE:
1infraspinatus
2supraspinatus
3subscapularis
4teres minor |
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Definition
infraspinatus: deep to pectoralis major
extends and laterally rotates humerous
supraspinatus:abducts humerous; resists downard displacment when carrying heavy weight
subcapularis:medially rotates humerous |
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Term
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Definition
| adducts and medially rotates humerous |
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Term
| list the muscles that adduct the humerous |
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Definition
| pectoralis major, latissimus dorsi, teres major, coracobrachialis(arm), teres minor |
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Term
| list the muscles that abduct the humerous |
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Definition
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Term
list those that medially rotate humerous
those that laterally rotate it? |
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Definition
pectoralis major, latissimus dorsi, deltoid, teres major, subscapularis
teres minor, infraspinatus, |
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