The opposing muscle group(s) of the anterior/medial deltoids is/are the ___________, and the opposing muscle group(s) of the iliopsoas and rectus femoris is/are the ____________. Group of answer choices posterior deltoid; quadriceps latissimus dorsi; gluteus maximus, hamstrings triceps; erector spinae middle trapezius and rhomboids; hip adductors
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21. Identify the posterior trunk muscles described in Column A by choosing a response from Column B. Enter the correct letter in the answer blank. Select a different color for each muscle description with a coding circle and color the coding circles and corresponding muscles on Figure 6-8. Column A Column B 1. Muscle that allows you to shrug your shoulders or extend your head A. Deltoid B. Erector spinae 2. Muscle that adducts the shoulder and causes extension of the shoulder joint C. External oblique D. Gluteus maximus 3. Shoulder muscle that is the antagonist of the muscle just described E. Latissimus dorsi 4. Prime mover of back extension; a deep composite muscle consisting of three columns F. Quadratus lumborum G. Trapezius 5. Large paired superficial muscle of the lower back 6. Fleshy muscle forming part of the posterior abdominal wall that helps maintain upright posture
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A. Levator scapulae B. Rhomboids C. Serratus anterior D. Trapezius H. Name the posterior trunk muscles described below. 1. A muscle that enables you to shrug your shoulders or extend your head. 2. Prime mover of back extension; a composite muscle consisting of three columns 3. Synergist of the trapezius in scapular elevation acts to flex the head to the same side 4. Synergist of latissimus dorsi in extension and adduction of the humerus 5. A rotator cuff muscle; prevents downward dislocation of the humerus 6. A rotator cuff muscle; rotates the humerus laterally 7. A rotator cuff muscle; lies immediately interior to the infraspinatus I. Match the forearm muscles listed with their major action. 1. Flexes the wrist and middle phalanges 2. Pronate the forearm 3. Flexes the distal interphalangeal joints 4. Powerful wrist flexors 5. Thumb flexors 6. Extend and abduct the wrist 7. Prime mover of finger extension 8. Extend the thumb 9. Puts the forearm and hand in the anatomical position 10. Small muscle that provides a guide to locate the median nerve at the wrist A. Extensor carpi radialis longus & brevis B. Extensor carpi ulnaris C. Extensor digitorum D. Extensor pollicis longus and brevis E. Flexor carpi radialis F. Flexor carpi ulnaris G. Flexor digitorum profundus H. Flexor digitorum superficialis I. Flexor pollicis longus and brevis J. Palmaris longus K. Pronators teres and quadratus L. Supinator
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