Human Anatomy & Physiology (2nd Edition)
2nd Edition
ISBN: 9780134553511
Author: Erin C. Amerman
Publisher: PEARSON
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Chapter 9, Problem 2CYU
Summary Introduction
To review:
The increase in surface area of the thoracic cavity by the diaphragm muscle, in spite of it having no association to a bone.
Introduction:
The diaphragm is a muscular structure and is domeshaped that separates the chest cavity from the abdominal cavity. It acts as the main muscle for respiration. Diaphragm originates from the bottom part of the breastbone and the lower ribs to the costal cartilages from the front side and to the lumbar vertebrae from the back side.
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Chapter 9 Solutions
Human Anatomy & Physiology (2nd Edition)
Ch. 9.1 - What is a fascicle, and how does it relate to the...Ch. 9.1 - 2. How do the terms pennate, parallel, and...Ch. 9.1 - The adductor magnus muscle is a muscle in the...Ch. 9.1 - 4. What is the role of an agonist in a muscle...Ch. 9.1 - What are a muscles origin and insertion, and how...Ch. 9.1 - 6. How do first-, second-, and third-class lever...Ch. 9.2 - 1. How do the muscles of facial expression differ...Ch. 9.2 - Which muscles are involved in opening and closing...Ch. 9.2 - What are three muscles involved in producing happy...Ch. 9.2 - Which muscles are involved in producing frowning...
Ch. 9.2 - Which extrinsic eye muscles pull the eyeball...Ch. 9.2 - Prob. 6QCCh. 9.2 - Prob. 7QCCh. 9.2 - Prob. 8QCCh. 9.2 - Prob. 9QCCh. 9.2 - What are the three main muscles of the erector...Ch. 9.2 - 11. What additional roles besides supporting...Ch. 9.3 - What is the main muscle of inspiration, and where...Ch. 9.3 - What roles do the external and internal...Ch. 9.3 - Which muscles are involved in trunk flexion?Ch. 9.3 - Prob. 4QCCh. 9.3 - Prob. 5QCCh. 9.3 - Prob. 6QCCh. 9.4 - Prob. 1QCCh. 9.4 - Which posterior trunk muscles act on the scapula?...Ch. 9.4 - Prob. 3QCCh. 9.4 - 4. What are two muscles that adduct the arm?
Ch. 9.4 - Prob. 5QCCh. 9.4 - Prob. 6QCCh. 9.5 - Prob. 1QCCh. 9.5 - Prob. 2QCCh. 9.5 - Prob. 3QCCh. 9.5 - Prob. 4QCCh. 9 - Which type of muscle fascicle pattern has an...Ch. 9 - 2. If “adductor” is part of the name of a muscle,...Ch. 9 - Match the term with its description: _____Brevis...Ch. 9 - Prob. 4CYRCh. 9 - 5. Which function is being fulfilled by a muscle...Ch. 9 - Prob. 6CYRCh. 9 - Which eye muscle passes through the trochlea and...Ch. 9 - Prob. 8CYRCh. 9 - Prob. 9CYRCh. 9 - Prob. 10CYRCh. 9 - 11. Match the muscle with its main...Ch. 9 - Prob. 12CYRCh. 9 - Prob. 13CYRCh. 9 - Prob. 14CYRCh. 9 - Prob. 15CYRCh. 9 - Prob. 16CYRCh. 9 - Prob. 1CYUCh. 9 - Prob. 2CYUCh. 9 - Prob. 3CYUCh. 9 - Prob. 4CYUCh. 9 - Prob. 5CYUCh. 9 - The rectus femoris muscle originates from the...Ch. 9 - Prob. 1AYKACh. 9 - Prob. 2AYKACh. 9 - Prob. 3AYKACh. 9 - Prob. 4AYKACh. 9 - Prob. 5AYKB
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- 83% of the total number of fibers examined in the vastus lateralis and nearly 61% of the gastrocnemius were comprised of fast-twitch fibers. Are you surprised by the results? Why? What are the key characteristics of fast-twitch muscle fibers? (State THREE characteristics including myoglobin content and mitochondrial volume density)arrow_forwardWhich muscles contract during normal tidal expiration? a) diaphragm b) external intercostal muscles! c) internal intercostal muscles d) all of the above e) None of the abovearrow_forward21) which of the following memebrane surrounds the entire muscle belly? a) epimysium b) endomysium c) perimysium d) sarcolemmaarrow_forward
- Describe at least one scenario of injury to the diaphragm during daily use or sport. Be sure to provide a clear description of the body and joint positions as well as the source of forces that lead to the injury. Describe one example of the type of modifications of movement a person must make in order to compensate and complete tasks as normally as possible when the diaphragm's function is temporarily or permanently lost due to injury.arrow_forwardContraction of the external intercostal muscles causes which of the following to occur? Group of answer choices a. thoracic cavity volume to increase b. diaphragm to move downward c. rib cage to compress d. ribs and sternum to move downwardarrow_forwardPaola is a 3-year-old girl with a disease that reduces the ability of her mitochondria to generate ATP. Explain the specific effects of this disease on the ability of Paola’s muscles to function properly. What other tissues and organs are likely to be affected by her disease, and why?arrow_forward
- The muscles of a recently deceased human can remain in a contracted state, termed rigor mortis, for several hours, due to the lack of .. ADP and Pi oxygen supplies Na+ calcium ions ATParrow_forwardDiscuss the notion that intense exercise might result in permanent damage to (b) the musculoskeletal system in children.arrow_forwardDescribe exercises that strengthen the diaphragm during concentric action and exercise examples during eccentric action. Do not just list exercises. Describe how the body is positioned to move the weight so to engage the diaphragmarrow_forward
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