BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 27, Problem 5WIO
Summary Introduction
To determine:
The functions of heart valves and the reason that a person with a leaky heart valve feels short of breath.
Introduction:
The process of transferring substances from one part of the body to another is termed as transportation. It is an important process that helps the body to maintain the concentration of important components. The complex organisms have a well-defined organ system for the transportation of substances across the body parts. This organ system is called the circulatory system. The heart is a vital fluid of the circulatory system.
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Students have asked these similar questions
What is the function of heart valves? Why might a person with a leakyheart valve feel short of breath?
What is responsible for the first heart sound (lub)?
A. Contraction of the atria.
B. Contraction of the ventricles
C. Closing of the atrioventricular valves
D. Closing of the semilunar valves
How is blood prevented from backflowing from the pulmonary trunk into the right ventricle?
a. closing of the right AV valves
b. opening of the pulmonary semilunar valve
c. contraction of the right atrium
d. closing of the pulmonary semilunar valve
Chapter 27 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 27.1 - What are the components of blood?Ch. 27.1 - Prob. 2MCCh. 27.1 - Prob. 3MCCh. 27.1 - Prob. 4MCCh. 27.3 - What is the cardiovascular system?Ch. 27.3 - Prob. 2MCCh. 27.4 - Prob. 1MCCh. 27.4 - Prob. 2MCCh. 27.4 - Prob. 3MCCh. 27.4 - How does exercise affect the circulatory system?
Ch. 27.5 - Prob. 1MCCh. 27.5 - Prob. 2MCCh. 27.5 - Prob. 3MCCh. 27.6 - Prob. 1MCCh. 27.6 - Prob. 2MCCh. 27.6 - Prob. 3MCCh. 27.6 - Prob. 4MCCh. 27.7 - Prob. 1MCCh. 27.7 - Describe the events of one respiratory cycle.Ch. 27.7 - Prob. 3MCCh. 27.8 - Prob. 1MCCh. 27.8 - Prob. 2MCCh. 27.8 - Prob. 3MCCh. 27 - Prob. 1MCQCh. 27 - Prob. 2MCQCh. 27 - Prob. 3MCQCh. 27 - Prob. 4MCQCh. 27 - Prob. 5MCQCh. 27 - Prob. 6MCQCh. 27 - Prob. 7MCQCh. 27 - Prob. 1WIOCh. 27 - Prob. 2WIOCh. 27 - Prob. 3WIOCh. 27 - Describe the events that occur during one cardiac...Ch. 27 - Prob. 5WIOCh. 27 - Prob. 6WIOCh. 27 - Explain how a sphygmomanometer blood pressure...Ch. 27 - Prob. 8WIOCh. 27 - Prob. 9WIOCh. 27 - Prob. 10WIOCh. 27 - Prob. 11WIOCh. 27 - Prob. 12WIOCh. 27 - Prob. 13WIOCh. 27 - Prob. 14WIOCh. 27 - Use the Internet to learn more about disorders of...Ch. 27 - Prob. 2SLCh. 27 - Review the Survey the Landscape figure in the...Ch. 27 - How do the pulmonary and systemic circulatory...Ch. 27 - Prob. 3PITCh. 27 - Prob. 4PIT
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- Which heart chamber has the thickest wall? a. right atrium c. left atrium b. right ventricle d. left ventriclearrow_forwardWhich lists the layers of the heart wall from superficial to deep? A. myocardium, endocardium, epicardium B. endocardium, myocardium, epicardium C. epicardium, myocardium, endocardiumarrow_forwardWhy does the right ventricle have a bicuspid valve? a. The low pressure generated by the right ventricle is best suited to bicuspid valve compared with a tricuspid valve b. The high pressure generated by the right ventricle would be better controlled by a bicuspid compared with a tricuspid valve c. Only a short pumping distance to the lungs is required for the bicuspid valve d. The right ventricle does not have a bicuspid valvearrow_forward
- In a essay detail how the heart contract on both the cellular and organ level.arrow_forwardIn terms of being open or closed, what is the state of the mitral and tricuspid valve (left and right atrioventricular valves respectively) at the end of the first heart sound? a. Mitral is closed, Tricuspid is open b. Mitral is open, Tricuspid is closed c. Both are closed d. Both are openarrow_forwardWhat valve is located between the left atrium and left ventricle? a-Tricuspid valve b-Bicuspid valve c-Pulmonary valve d-Aortic valvearrow_forward
- Why is it necessary to stimulate papillary muscles in the ventricle slightly earlier than the rest of the ventricular wall myocardium? a. to assure rapid conduction speed of the action potential b. to pull on AV valve cusps to prevent backflow c. to assure blood will surge toward the semilunar valves d. to assure coordinated contraction of the ventricular myocardiumarrow_forwardWhen you measure blood pressure, the Korotkoff sounds (i.e. the sounds heard through a stethoscope) are produced by? A. turbulent blood flow B. valves closing C. ventricular repolarization D. ventricular depolarization?arrow_forwardSearch the Internet for different heart sounds. See if you can detect the difference in sound between a normal heart and the heart of a person with a heart murmur.arrow_forward
- Write a statement that describes the correlation among heart rate, length of the cardiac cycle, and length of diastole.arrow_forwardwhat is the function of the valves found in the heartarrow_forwardThe exchange between the blood and the interstitial fluid occurs most readily through which type of capillary? a. sinusoidal b. continuous c. fenestratedarrow_forward
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