ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303106
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 8, Problem 3CT

For each of the following muscles, describe the motion(s) produced when the muscle contracts. It may be helpful to use an articulated skeleton.
a. The biceps brachii muscle attaches to the coracoid process of the scapula (one head) and to the radial tuberosity of the radius. Name two movements that the muscle accomplishes in the forearm.
b. The rectus lemons muscle attaches o the anterior inferior iliac spine and the tibial tuberosity. How does contraction move the thigh? The leg!
c. The supraspinatus muscle is located in and attached to the supra-spinatus fossa of the scapula. Its tendon runs over the head of the humerus to the greater tubercle. When it contracts, what movement occurs at the glenohumeral (shoulder) joint?
d. The gastrocnemius muscle attaches to the medical and lateral condyles of the femur and to the calcaneus. What movement at leg results when this muscle contracts? Of the foot?

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Students have asked these similar questions
describe scapulohumeral movement, or synergy, that takes place with the shoulder joint and girdle. What muscles are acting to create these motions? What could happen if this synergy did not occur?
Which of the following statements are true of the locations and functions of muscles? (Read carefully and select all the correct statements.)   A. The masseter lowers the maxilla. B. The gluteus maximus flexes the thigh. C. The biceps brachii flexes the forearm. D. The tibialis anterior plantar flexes the foot. E. The orbicularis oris opens the mouth. F. The external obliques help laterally flex the vertebral column. G. The hamstring group extends the thigh at the hip. H. The trapezius raises the shoulder.
The right levator scapula is contracted with the intent to only elevate the scapula, no other actions at the scapula are desired. Please complete the following two part question What are all of the muscles that could act as a synergist/neutralizer during this motion? What muscle would be the best option for a synergist/neutralizer and justify your answer?

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