PTA 2102 Anatomy and Movement

Physical Therapy Assistant Program - Murray State College

Summer Session 2004

Answers to these questions are to be returned to the instructor by email on or before the due date.  You may choose to copy and paste the questions directly into an email and send to instructor.  Please remember to include in the subject line PTA 2102 Unit 3

UNIT 3 Review Questions – due 6-18-04

REVIEW QUESTIONS 

  1. Usually, when a muscle contracts, the distal attachment moves toward the proximal attachment. What is another name for the distal attachment?  What is another name for the proximal attachment?

  2. What is the term for a muscle contraction in which the proximal end moves toward the distal end?

For questions 3 and 4, answer the following questions:

a. What is the joint motion involved?
b. Is the muscle action an isometric or isotonic contraction?
c. If the contraction is isotonic, is it concentric or eccentric?

  1. Sitting with a weight in your hand, forearm pronated, elbow extended, and shoulder medially rotated, slowly abduct your shoulder.
    At the shoulder
    a.
    b.
    c.
    At the elbow
    a.
    b.
    c.

  2. Lying supine with a weight in your hand (starting in an anatomical position) raise the weight up and over your shoulder.
    a.
    b.
    c.

  3. The flexor carpi radialis muscle performs wrist flexion and radial deviation. The flexor carpi ulnaris muscle performs wrist flexion and ulnar deviation. In what wrist action do the two muscles act as agonists? In what wrist action do they act as antagonists?

  4. The gluteus maximus muscle is a hip extensor and lateral rotator. The semitendinosus muscle is a hip extensor. The gluteus minimus muscle is a hip medial rotator. Which of these three muscles must act as a neutralizer for hip extension to occur?

  5. What is the term for the situation in which a muscle contracts until it can contract no farther even though more joint range of motion is possible?

  6. Walking downhill, do you tend to use your quadriceps muscle in a concentric or eccentric contraction?

  7. Name the four muscles of the rotator cuff group.

  8. Name the four muscles of the quadriceps group.

  9. Name the three muscles of the hamstring group.