PRE-LAB Activity 3: Mastering the Muscles of the Trunk 1. Match each of the foll

Question

PRE-LAB Activity 3: Mastering the Muscles of the Trunk 1. Match each of the following muscles with its correct description: dome-shaped muscle that functions in inspiration 2. eleven pairs of muscles that elevate the rib cage 3. tripartite muscle that runs from the sacrum to the skull a. internal intercostals b. rectus abdominis c. quadratus lumborum d, semispinalis e. trapezius f. subclavius g, erector spinae h. external intercostals 4 flexes the vertebral column large, triangular muscle that extends head 6,. eleven pairs of muscles that depress the rib cage 7. square-shaped muscle in the lumbar region 8. tripartite muscle that runs from the cervical or thoracic vertebrae to the skull -i, diaphragm 9. located below the clavicle PRE-LAB Activity 4: Mastering the Muscles of the Upper Limb 1. Which of the following muscles is one of the rotator cuff muscles? a. trapezius b. pectoralis major d. latissimus dorsi e. triceps brachii supraspinatus 2. Distinguish between the triceps brachii and the biceps brachii in terms of location and function. 3. Indicate whether each of the following muscles is located on the anterior (A) or the posterior (P) surface of the body, and then write the action of the muscle: a. palmaris longus: b. extensor carpi ulnaris: c. extensor digitorum d. flexor carpi radialis: e, pronator teres:

Explanation / Answer

ACTIVITY 3

1.

a. Internal intercoastals- 6. Eleven pairs of muscle that depress the rib cage

b. Rectus abdominis- 4. Flexes vertebral column

c. Quadratus lumborum- 7. square shaped muscle in the lumbar region

d. Semispinalis- 8. Tripartite muscle that runs from the cervicalor thoracic vertebrae to the skull

e. Trapezius- 5. Large, triangular muscle that extends head

f. Subclavius- 9. below the clavicle

g. Erector spinae- 3. Tripartite muscle that runs from the sacrum to the skull

h. External intercoastals- 2. Eleven pairs of muscle that elevate the rib cage

i. Diaphragm- 1. Dome shaped musce that functions in inspiration

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