Trunk and upper extremities muscle groups
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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| Biceps Brachii | show 🗑
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| Deltoid | show 🗑
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| Diaphragm | show 🗑
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| External Intercostals | show 🗑
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| show | O-external and inferior borders of ribs 5-12, I-linea alba and iliac crest, A-compresses abdomen, depresses ribs, flexes or bends spine
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| show | O-lumbodorsal fascia and iliac crest, I-inferior ribs, xiphoid process, and linea alba, A-compresses abdomen, depresses ribs, flexes or bends spine
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| Pectoralis Major | show 🗑
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| Pectoralis Minor | show 🗑
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| Rectus Abdominis | show 🗑
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| show | O-spinous processses of vertebrae C7-T1, I-vertebral border of scapula near spine, A-adducts scapula and performs downward rotation
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| show | O-anterior and superior margins of ribs 1-8 or 1-9, I-anterior surface of vertebral border of scapula, A-protracts shoulder; rotates scapula so glenoid cavity moves superiorly (upward rotation)
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| Transverse Abdominis | show 🗑
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| Levator Scapulae | show 🗑
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| Trapezius | show 🗑
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| Deltoid | show 🗑
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| show | origin-spines of upper thoracic vertebrae, insertion: medial border of scapula, action-raises and adducts scapula
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| show | origin-supraspinous fossa of scapula, insertion: greater tubercle of humerus, action-abduction at shoulder
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| show | origin-infraspinous fossa of scapula, insertion-greater tubercle of humerus, action-lateral rotation at shoulder
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| show | origin-lateral border of scapula, insertion-greater tubercle of humerus, action-lateral rotation at shoulder
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| show | origin-inferior angle of scapula, insertion-intertubercular groove of humerus, action-extension, adduction, and medial rotation at shoulder
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| Triceps Brachii | show 🗑
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| show | origin-spinous processes of inferior thoracic and all lumbar vertebrae, ribs 8-12, and lumbodorsal fascia, insertion-intertubercular groove of the humerus, action-extension, adduction, and medial rotation at shoulder
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| Extensor carpi radialis longus | show 🗑
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| Extensor digitorum | show 🗑
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| show | Origin-medial epicondyle of humerus, Insertion-Bases of second and third metacarpal bones, Actions-Flexion and abduction at wrist
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| Palmaris longus | show 🗑
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| Flexor Carpi ulnaris | show 🗑
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| subscapularis | show 🗑
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| Quadratus lumborum | show 🗑
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| Splenius capitis | show 🗑
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| Iliocostalis lumborum | show 🗑
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| show | Origin-transverse and costal processes of cervical vertebrae, Insertion-superior surfaces of first two ribs, Action-elevate ribs or flex neck
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| abductor digiti minimi | show 🗑
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| show | flexes little finger
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| show | adducts thumb
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| show | abducts fingers
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| flexor pollicis brevis | show 🗑
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| lumbricals | show 🗑
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| show | opposition of thumb
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| show | adduct fingers
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| Palmaris brevis | show 🗑
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| bipennate muscle fascicles | show 🗑
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| show | when the fascicles are arranged in concentric rings.
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| show | muscle fascicles where the origin of the fixed bone is wider than the point of insertion.
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| show | bundle of muscle fibers
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| multipennate muscle fascicles | show 🗑
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| parallel fascicles | show 🗑
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| fusiform fascicles | show 🗑
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| show | fascicles are arranged on only one side of tendon.
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| tendon | show 🗑
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| show | attaches bone to bone
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| pennate | show 🗑
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Created by:
droesener
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