Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Chapter 19, Problem 21RQ
Which is more resistant to fatigue, cardiac muscle or skeletal muscle? What is the anatomical basis for this difference, and why is it important?
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Chapter 19 Solutions
Human Anatomy
Ch. 19 - Prob. 1CYUCh. 19 - Prob. 2CYUCh. 19 - What is another name for the epicardium?Ch. 19 - Identify the heart chamber or chambers that...Ch. 19 - Prob. 5CYUCh. 19 - Prob. 6CYUCh. 19 - During ventricular systole, are the AV valves open...Ch. 19 - Differentiate a stenotic valve from an incompetent...Ch. 19 - What is the significance of the gap junctions in...Ch. 19 - What is the pacemaker of the heart, and where is...
Ch. 19 - Prob. 11CYUCh. 19 - Prob. 12CYUCh. 19 - Prob. 13CYUCh. 19 - How would incomplete formation of the...Ch. 19 - Which chamber of the heart is formed from the...Ch. 19 - What is the single most important factor for...Ch. 19 - The most external part of the pericardium is the...Ch. 19 - Prob. 2RQCh. 19 - How many cusps does the right atrioventricular...Ch. 19 - Prob. 4RQCh. 19 - Prob. 5RQCh. 19 - Prob. 6RQCh. 19 - Prob. 7RQCh. 19 - Prob. 8RQCh. 19 - Prob. 9RQCh. 19 - Which layer of the heart wall is the thickest? (a)...Ch. 19 - The inferior left corner of the heart is located...Ch. 19 - Ben was annoyed when his lab partner insisted that...Ch. 19 - Describe the location of the heart within the...Ch. 19 - Trace a drop of blood through all the heart...Ch. 19 - Prob. 15RQCh. 19 - Sketch the heart and draw all the coronary vessels...Ch. 19 - Prob. 17RQCh. 19 - Prob. 18RQCh. 19 - Make a drawing of the adult heart and the...Ch. 19 - How do the right and left ventricles differ...Ch. 19 - Which is more resistant to fatigue, cardiac muscle...Ch. 19 - Describe the structure and function of an...Ch. 19 - Compare and contrast the structure of cardiac...Ch. 19 - Classify the three congenital heart...Ch. 19 - Prob. 2CRCAQCh. 19 - Prob. 3CRCAQCh. 19 - After a man was stabbed in the chest, his face...Ch. 19 - A heroin addict felt tired, weak, and feverish....Ch. 19 - Another patient had an abnormal heart sound that...Ch. 19 - Prob. 7CRCAQCh. 19 - During a lethal heart attack, a blood. clot lodges...Ch. 19 - Prob. 9CRCAQ
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- Label the following as A, B, C, D, E, F, G: -Ventral Blood Vessel -Longitudinal Muscle -Dorsal Blood Vessel -Setae -Ventral Nerve Cord -Typhlosole -Circular Musclesarrow_forwardDescribe the blood supply to a skeletal muscle?arrow_forwardWhat cellular changes could cause the skeletal muscle to become rigid?arrow_forward
- What is the effect of centrally acting skeletal muscle relaxants on the body, and what safety precautions are related to their use?arrow_forwardAfter a 30 min Weight Lifting Session (Muscle, Cardiovascular) 1) Identify the specific disturbance(s). What is being moved away from set point or resting values? 2) How is (are) the changes detected? What are the physiological sensors? 3) How will body regulate the changes to return to normal? 4) Are there specific interactions between the 2 systems that help detection or help regulate the changes back to rest?arrow_forwardWhat is the principal difference between the way cardiac muscle and smooth muscle form and the way skeletal muscle forms?arrow_forward
- The changes related to muscle mobility are the most obvious in older adult. There can be measurable differences in muscle strength, endurance, range of motion, coordination, elasticity, and flexibility of connective tissue. Regular exercise is necessary to prevent a decrease in muscle strength. Exercise helps to strengthen muscles and keeps joints, tendons, and ligaments more flexible, allowing for a more active lifestyle. Please research and describe some activities you could recommend to an elderly patient to stay active to help them maintain muscle massarrow_forwardExplain why it is important for cardiac muscle to havelonger-lasting contractions than skeletal muscle.arrow_forwardMen are generally stronger than women because they typically have larger bodies, and a more significant proportion of their total body mass is made up of muscle. However, when strength is expressed per unit of the cross-sectional area of muscle tissue, men are only 1-2% stronger than women in the upper body and equal to women in the lower body. Explain two factors that explain these disparities.arrow_forward
- The change related to muscle mobility are the most obvious in older adult. There can be measurable differences in muscle strength, endurance, range of motion, coordination, elasticity, and flexibility of connective tissue. Regular exercise is necessary to prevent a decrease in muscle strength. Exercise helps to strengthen muscles and keeps joints, tendons, and ligaments more flexible, allowing for a more active lifestyle. Describe some activities you could recommend to an elderly patient to stay active to help them maintain muscle mass.arrow_forwardWhich activity would be more likely to create an oxygen debt in an individual who regularly exercises: swimming laps or lifting weights?arrow_forwardCompare and contrast the functions, anatomy and characteristics of skeletal vs smooth muscle. Characterize the microscopic anatomical structure of skeletal muscle. Describe the organization of the sarcomere. Characterize the actions of motor neurons at the neuromuscular junction. Explain the process by which skeletal muscle contraction occurs. Describe the composition of and the function of cerebrospinal fluid and the blood-brain barrier. Explain the major role of the lobes, areas and regions of the brain. Contrast the effects of the various cranial nerves. Answer all, not graded, thanksarrow_forward
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