Principles of Anatomy and Physiology
16th Edition
ISBN: 9781119662792
Author: Tortora, Gerard J., DERRICKSON, Bryan H.
Publisher: WILEY
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Textbook Question
Chapter 20, Problem 27CP
Why is the cardiovascular system one of the first systems to develop?
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Chapter 20 Solutions
Principles of Anatomy and Physiology
Ch. 20 - l. Define each of the following external features...Ch. 20 - 2. Describe the structure of the pericardium and...Ch. 20 - 3. What are the characteristic internal features...Ch. 20 - Prob. 4CPCh. 20 - 5. What is the relationship between wall thickness...Ch. 20 - Prob. 6CPCh. 20 - What causes the heart valves to open and to close?...Ch. 20 - In correct sequence, which heart chambers, heart...Ch. 20 - Prob. 9CPCh. 20 - Prob. 10CP
Ch. 20 - 11. In what ways are autorhythmic fibers similar...Ch. 20 - What happens during each of the three phases of an...Ch. 20 - 13. In what ways are ECGs helpful in diagnosing...Ch. 20 - How does each ECG wave, interval, and segment...Ch. 20 - 15. Why must left ventricular pressure be greater...Ch. 20 - Prob. 16CPCh. 20 - During which two periods of the cardiac cycle do...Ch. 20 - Prob. 18CPCh. 20 - Prob. 19CPCh. 20 - Prob. 20CPCh. 20 - Prob. 21CPCh. 20 - Define cardiac reserve. How does it change with...Ch. 20 - Prob. 23CPCh. 20 - 24. What are some of the cardiovascular benefits...Ch. 20 - Prob. 25CPCh. 20 - Prob. 26CPCh. 20 - Why is the cardiovascular system one of the first...Ch. 20 - From which tissue does the heart develop?Ch. 20 - Gerald recently visited the dentist. During the...Ch. 20 - 2. Unathletic Sylvia resolves to begin an exercise...Ch. 20 - 3. Mr. Perkins is a large, 62-year-old man with a...
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- What is the advantage of a four-chambered heart?a. It uses the least energy of any type of heart.b. It maximizes the amount of O2 reaching tissues.c. It enhances the mixing of blood from the pulmonary and systemiccirculation.d. Both a and c are correctarrow_forwardwhat is the job of the heart? Provide roots to the cells of the body, dissolve in transport materials, or create pressure which drives blood flow.arrow_forwardThe earliest organ to form and begin function within the developing human is the a. brain b. stomach c. lungs d. heartarrow_forward
- Do other organs or organ systems develop at the same time?arrow_forwardWhat happens when the pressure in the ventricles becomes lower than the pressure in the atria? a-the atrioventricular valves open b-the semilunar valves close c-the semilunar valves open d-the first heart sound occursarrow_forwardWhat is the main purpose of the circulatory system? move blood throughout the body move lymphatic fluid from the tissue to the heart digest food move blood and lymph throughout the bodyarrow_forward
- What is another name for the circulatory system? What is the function of this system?arrow_forwardThe atriums are the A. Lower chambers of the heart B. Upper chambers of the heart C. Receives oxygenated blood on both the left and right side D. Have a fetal connection that stays parent throughout life Choose the correct answerarrow_forwardDid you ever wonder why the heart, blood vessels, and blood begin to form so early in the developmental process ?arrow_forward
- What is the function of the blood vessels and capillaries? 1) They pump blood to the heart. 2) They filter impurities from the blood. 3) They carry blood to all parts of the body. 4) They carry messages from the brain to the musclesarrow_forwardHow exactly does the heartbeat work? Does the right and left atrium pump blood at the same time? Or is it more like: AV node action potential reaches all the way to right ventricle which releases deoxygenated blood through the pulmonary arteries to the capillaries of the lungs, lungs release oxygenated blood through pulmonary veins to the left atria and then left ventricle. But then doesn't the ventricle have to pump blood too? So how is it that they contract at the same time?arrow_forwardWhat does Singer think is more valuable, a human embryo or the life of an ape? How does he justify his point of view? (max. 150 words)arrow_forward
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The Cardiovascular System: An Overview; Author: Strong Medicine;https://www.youtube.com/watch?v=Wu18mpI_62s;License: Standard youtube license