Question

1. which muscle or muscle group originates and inserts distal to the wrist? A. Extrinsic wrist...

1. which muscle or muscle group originates and inserts distal to the wrist?

A. Extrinsic wrist flexors
B. intrinsic wrist flexors
C. extrinsic wrist flexors
D. Palmaris longus


TRUE OR FALSE
2. A common mechanism of injury to the rotator cuff is when excessive internal or external rotation must be stopped. TRUE OR FALSE


Homework Answers

Answer #1

1. Intrinsic wrist flexors .

Explanation - Intrensic muscles are the group of muscle situated completly in the hand. Hence, both origin and insertion of intrensic muscle lies distal to wrist.

2. TRUE.

Explanation - Rotator cuff consists of 4 muscles, namely Supraspinatous, Infraspinatus, Teres minor, Subscapularis. The tendons of these muscle provide stability during motion of the joint. Hence, rotator cuff is injured when excessive internal or external rotation must be stopped.

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