Term
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Definition
| frontalis and occipitalis; raises eyebrows, wrinkles forehead horizontally, pulls scalp posteriorly; O: galea aponeurotica and occipital bone; I: skin of eyebrows and root of nose and galea aponeurotica tendon |
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Definition
| smiling muscle; O: zygomatic bone; I: skin/muscle at corner of mouth |
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Definition
| closes lips, purses/protrudes lips, kissing/whistling muscle; O: maxilla and mandible; I: muscle/skin at angles of mouth |
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Definition
| prime mover of jaw closure, elevates mandible; O: zygomatic arch; I: mandible |
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Definition
| protrudes mandible, provides teeth grinding; O: sphenoid, maxilla, palatine; I: mandible, sphenoid |
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Definition
| constrict pharynx during swallowing which propels food esophagus; O: mandible, hyoid; I: pahrynx |
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Definition
| head flexion, neck flexion, rotates head toward shoulder, tilts head to its own side; O: sternum, clavicle; I: mastoid process of temporal bone |
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Definition
| extends or hyperextends head; O: ligamentum nuchae, vertebrae; I: mastoid process of temporal bone occipital bone, vertebrae |
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Definition
| prime mover of back extension; O: iliac crest, ribs, vertebrae; I: ribs, vertebrae, occipital bone |
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Definition
| prime mover of inspiration; O: ribcage, sternum, vertebrae; I: central |
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Definition
| flex or rotates lumbar region of vertebral column, stabilizes pelvis during walking; O: pubic crest and symphysis; I: xiphoid process and ribs |
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Definition
| stabilizes, raises, retracts and rotates scapula; O: occipital bone, ligamentum nuchae, vertebrae; I: acromion, scapula, clavicle |
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Term
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Definition
| “square” the shoulder, stabilize scapula; O: vertebrae; I: scapula |
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Term
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Definition
| supraspinatus, infraspinatus, teres minor, subscapularis; reinforced the capsule of the shoulder joint to prevent dislocation; O: scapula; I: humerus |
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Definition
| prime mover of arm flexion, rotates arm medially, adducts arm against resistance; O: clavicle, sternum, ribs; I: humerus |
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Definition
| arm adduction; O: scapula; I: humerus |
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Definition
| prime mover of arm extension, arm adductor; O: vertebrae, iliac crest, scapula; I: humerus |
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Definition
| prime mover of arm abduction; O: trapezius, clavicle, scapula; I: humerus |
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Term
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Definition
| flexes elbow joint and supinates forearm; O: scapula, humerus; I: radial tuberosity |
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Term
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Definition
| prime mover of forearm extension; O: scapula, humerus; I: ulna |
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Term
| flexor carpi radialis & ulnaris |
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Definition
| powerful wrist flexor, hand abductor and adductor; O: humerus, ulna; I: metacarpals |
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Term
| extensor carpi radialis & ulnaris |
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Definition
| powerful wrist extensor, wrist abductor and adductor; O: humerus, ulna; I: metacarpals |
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Definition
| prime mover of finger extension; O: humerus; I: phalanges |
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Definition
| extends index finger; O: ulna; I: index finger |
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Definition
| part of iliopsoas; prime mover for thigh flexion; O: iliac fossa; I: femur |
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Definition
| part of iliopsoas; prime mover for thigh flexion, important for posture; O: vertebrae; I: femur |
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Term
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Definition
| thigh flexion; O: iliac spine; I: tibia |
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Definition
| adducts thigh; O: pubis; I: tibia |
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Term
| pectineus & adductor (longus, magnus, brevus) muscles |
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Definition
| adducts, flexes, medially rotates thigh; O: pubis; I: femur |
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Term
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Definition
| rectus femoris, vastus lateralis, vastus medialis, vastus intermedius; extend knee; O: iliac spine, femur; I: patella, tibia |
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Term
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Definition
| flexes and abducts thigh, rotates thigh medially; O: iliac crest/spine; I: iliotibial tract |
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Definition
| major extensor of the thigh; O: ilium, sacrum, coccyx; I: femur |
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Definition
| abducts and medially roates thigh; O: ilium; I: femur |
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Definition
| biceps femoris, semitendinosus, semimembranosus; prime movers of thigh extension and knee flexion; O: ischium, femur; I: fibula, tibia |
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Definition
| biceps femoris, semitendinosus, semimembranosus; prime movers of thigh extension and knee flexion; O: ischium, femur; I: fibula, tibia |
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Term
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Definition
| prime mover of dorsiflexion; O: tibia; I: metatarsals |
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Term
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Definition
| (fibularis) plantar flexion and foot eversion; O: fibula; I: metatarsals, tarsals |
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Term
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Definition
| plantar flexion during knee extension; important in running, walking, dancing; O: femur, tibia, fibula; I: calcaneus |
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Definition
| flexes and rotates leg medially to unlock extended knee; O: femur; I: tibia |
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Definition
| plantar flexion and foot inversion, toe flexion; O: tibia; I: malleolus, phalanges |
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Term
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Definition
| prime mover of foot inversion, plantar flexion; O: tibia, fibula; I: malleolus, tarsals, metatarsals |
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