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Principles of Anatomy and Physiology
14th Edition
ISBN: 9781118345009
Author: Gerard J. Tortora
Publisher: WILEY
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Chapter 11, Problem 21CP
Summary Introduction
To review:
The difference in the functioning of extrinsic and intrinsic muscles of the hand.
Introduction:
The hand muscles, which move the entire hand including the wrists, fingers, and arm, are divided into intrinsic and extrinsic muscles. The extrinsic muscles are the superficially lying muscles while the intrinsic muscles are located deep inside the body parts.
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Chapter 11 Solutions
Principles of Anatomy and Physiology
Ch. 11 - Using the terms origin, insertion, and belly,...Ch. 11 - List the three types of levers, and give an...Ch. 11 - Prob. 3CPCh. 11 - 3. Define the roles of the prime mover (agonist),...Ch. 11 - Prob. 5CPCh. 11 - 5. Select 10 muscles in Figure 11.3 and identify...Ch. 11 - QUESTION 7
7. Why do the muscles of facial...Ch. 11 - Prob. 8CPCh. 11 - Prob. 9CPCh. 11 - When your physician says, "Open your mouth, stick...
Ch. 11 - Prob. 11CPCh. 11 - What muscles do you contract to signify "yes" and...Ch. 11 - QUESTION 13
13. Which muscles do you contract when...Ch. 11 - What are the names of the three openings in the...Ch. 11 - 15. Which muscles are strengthened by Kegel...Ch. 11 - What are the borders and contents of the...Ch. 11 - Prob. 17CPCh. 11 - QUESTION 18
18. Why are the two muscles that cross...Ch. 11 - Prob. 19CPCh. 11 - Prob. 20CPCh. 11 - Prob. 21CPCh. 11 - What is the largest muscle group of the back?Ch. 11 - What is the origin of most muscles that move the...Ch. 11 - Question 24
24. Which muscles are part of the...Ch. 11 - What are the superior extensor retinaculum and...Ch. 11 - How do the intrinsic muscles of the hand and foot...
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- Name and locate the muscles that act on the shoulder, arm, forearm, wrist, and hand?arrow_forwardWhat structures firmly hold the tendons of the anterior compartment muscles to the ankle?arrow_forwardWhich of the muscles listed is not innervated by the musculocutaneous nerve? (a) coracobrachialis, (b) biceps brachii, (c) triceps brachii, (d) brachialis.arrow_forward
- Why are weak abdominal muscles frequentlyblamed for lower back pain?arrow_forwardThe muscle that closes the eyes is (a) the occipitalis, (b) the zygomaticus, (c) the corrugator supercilii, (d) the orbicularis oris, (e) none of these.arrow_forwardExplain what intrinsic and extrinsic muscles are?arrow_forward
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