Skeletal Muscles of the Pig
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each of the black spaces below before clicking
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| hypo- | under,less
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| infra- | below
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| inter- | between
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| -lemma | sheath,or husk
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| mega-,megalo- | large
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| Myo- | Muscle
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| post- | after
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| semi- | half
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| supra- | above
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| striation of smooth muscle | none
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| contraction of smooth muscle | involuntary
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| location of smooth muscle | GI, reproductive, ureters, blood vessels
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| arrangement of smooth muscle | circular and longitudinal layers, individual cells
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| nucleus of smooth muscle | single nucleus, centrally located
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| striation of cardiac muscle | yes
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| contraction on cardiac muscle | involuntary
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| location of cardiac muscle | heart
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| nucleus of cardiac muscle | 1, 2, or 3 nuclei, centrally located. majority become binucleated within a few weeks of life
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| striation of skeletal muscle | yes
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| contraction of skeletal muscle | voluntary
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| location of skeletal muscle | attached to bones
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| arrangement of skeletal muscle | longitudinal layers, elongated cells=muscle fibers
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| nucleus of skeletal muscle | mulinucleated, peripherally located
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| peristalsis | progressive alternating wave of coordinated contraction and relaxation of smooth muscle. result-movement of material
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| segmentation | stationary rhythmic contraction and relaxation of circular intestinal smooth muscle. result-mixing
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| functions of the skeletal muscle | maintain posture (hold the body erect), movement
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| what muscle is located on the back of the scapula? | supraspinatus
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| Biceps femoris | on lateral part of hind leg
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| Cutaneous trunci | directly under skin, horizontal striations, and is usually separated with the skin
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| Gastrocnemius | in the middle of the hind leg and contracts when you move leg
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| Gluteus group | located anterior of tail and is dark pink in color
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| Gracilis | on the medial part of the hind leg and is a thin sheet
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| Infraspinatus | below the scapula ridge
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| Latissimus dorsi | located caudal of the shoulder and the striations fan out caudal/dorsal
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| Longissiums | runs along the exterior of the spine
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| Obliquus externus abdominis | located lateral of rectus abdominis and striations run diagonally cranial/dorsal
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| Pectorales profundi | wraps around the medial part of front legs
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| Quadriceps femoris | located near stifle on cranial part of the hind leg
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| Rectus abdominis | located in the stomach region, your "abs"
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| Semimembranosus | located on inner leg, lateral to Gracilis
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| Semitendinosus | located on caudal part of hind leg, below the tail, and it is tendon like
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| Serratus ventralis | medial, beneath the Latissimus dorsi, large white lines make it look like "knuckles" or "serrated"
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| Supraspinatus | located in front of the scapula ridge
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| Trapezius | located dorsal of the shoulder and looks like a large dark triangle
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| Triceps group | located on caudal part of the front leg
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| Subscapularis | located on the back of the scapula
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| Psoas major | begins at the medial surface caudal to the last rib and ventral to the vertebrae
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