EP HUMAN BIOLOGY-MODIFIED MASTERING
8th Edition
ISBN: 9780134326436
Author: Johnson
Publisher: PEARSON CO
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Chapter 8, Problem 5TY
Summary Introduction
Introduction:
Heart is one of the vital organs present in the human body. It is the complex muscle, which is responsible for pumping the blood via three sections of the circulatory system. These sections are coronary, pulmonary, and systemic. The heart can be divided into numerous layers of cells and tissue, all of which have their own distinctive properties and functions.
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Match the following:
?
Myocardium
?
Parietal Pericardium
?
Endocardium
?
Visceral pericardium
A.
Heart muscle
B.
The inner lining of the heart
C.
Serous layer covering the heart muscle
D.
The outer layer of the serous pericardium
Which of the following structures provides the anchoring site for the valves of the heart and prevents the conduction of electrophysiologic impulses form the atria to the ventricles?
A. Chordae Tendineae
B. Fibrous Pericardium C. Fibrous Skeleton of the heart
D. MyocardiumE. Sinus Venosum
Identify the correct sequence of blood flow through the chambers of the heart.
A
"left ventricle, left atrium, lungs, right ventricle, right atrium"
B
"right ventricle, left ventricle, left atrium, lungs, right atrium"
C
"right atrium, right ventricle, lungs, left atrium, left ventricle"
D
"lungs, right ventricle, left ventricle, right atrium, left atrium"
E
"left ventricle, left atrium, right ventricle, right atrium, lungs"
Chapter 8 Solutions
EP HUMAN BIOLOGY-MODIFIED MASTERING
Ch. 8 -
1. Who do you want to help you decide which...Ch. 8 - Do you think cost-effectiveness should be a part...Ch. 8 -
1. Why is it so important that the heart always...Ch. 8 - Compare and contrast the structures and functions...Ch. 8 - Prob. 3CRCh. 8 - Describe the function of the heart valves.Ch. 8 - Compare the functions of the pulmonary circuit and...Ch. 8 -
6. Describe the cardiac cycle of relaxation and...Ch. 8 - Describe the function of the SA and AV nodes as...Ch. 8 - Prob. 8CR
Ch. 8 - Prob. 9CRCh. 8 - Prob. 10CRCh. 8 -
1. _______ carry blood away from the heart and...Ch. 8 - Prob. 2TYCh. 8 - Which of the choices represents the order of...Ch. 8 - Prob. 4TYCh. 8 - Prob. 5TYCh. 8 - Prob. 6TYCh. 8 - Prob. 7TYCh. 8 - A pacemaker is used to correct: a. coronary artery...Ch. 8 - Prob. 9TYCh. 8 - Prob. 10TYCh. 8 - Prob. 11TYCh. 8 - Prob. 12TYCh. 8 - Prob. 13TYCh. 8 - Prob. 14TYCh. 8 - Prob. 15TYCh. 8 - Prob. 1AWKCh. 8 - When a coronary artery bypass graft (CABG) is...Ch. 8 - Soldiers have to stand in formation at full...Ch. 8 - Prob. 4AWKCh. 8 - Prob. 5AWKCh. 8 - Ventricular fibrillation is a potentially fatal...Ch. 8 - Prob. 7AWKCh. 8 - Last night, you and your roommate were sound...
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- Which of the following is/are true concerning the opening and closing of the cardiac valves? A. valves operate according to the pressures on either side of the valve B. valve operation is constantly being controlled by the medulla oblongata C. valve operation is determined directly by the cardiac action potential (electrical currents control the opening and closing of the valves.) D. valve operation is directly controlled by the papillary muscles within the ventricular wall. E. None of the above is correct.arrow_forwardAll of the following occur when the ventricles contract except a. the AV valves close. b. blood is ejected into the aorta. c. the semilunar valves open. d. blood from the pulmonary trunk enters the atria.arrow_forwardWhich of the following is correct regarding the flow of blood in reference to the left side of the heart? a. Blood flows from the left atrium, through the bicuspid valve, into the left ventricle, through the aortic semilunar valve, and then into the aortic arch b. Blood flows from the left atrium, through the aortic semilunar valve, into the left ventricle, through the bicuspid valve, and then into the aortic arch c. Blood flows from the left atrium, through the bicuspid valve, into the left ventricle, into the aortic arch, through the aortic semilunar valve, and then into systemic arterial systemarrow_forward
- Which of the following is the outside layer that lines the inner surface of the fibrous pericardium A. Visceral Pericardium B. Endocardium C. Parietal Pericardium D. Epicardium In systemic circulation, oxygen rich blood returned to the left side of the heart A. Aorta B Pulmonary Ventricles C. Superior vena cava D. Right ventricle 3. The umbilical cord houses A. 1 umblical artery, 2 umbilical veins B. 1 umbilical vein, 2 umbilical artery C. 1 umbilical artery, 1 umbilical vein D. 2 umbilical arteries, 2 umbilical veins 4. The oxygen and nutrients rich blood coming from the placenta is carried by the umbilical vein to the inferior vena cava via A. foramen gvale B. pulmonary vein C. aortic arch D. ductus venosus 5.Cephalic vein drains A. the medial aspect of the arm and empties into the brachial vein B. the posterior part of the head C. the lateral aspect of the arm and empties into the axillary vein D. drains the lower body 6. It is the artery that supplies most of the small intestine…arrow_forwardFigure shows the conduction system of the heart that transmit the electrical impulses for the coordination of cardiac cycle. a) Referring to the Figure , which part of the heart's electrical conduction is known as the “pacemaker” of the heart? b)Explain how D controls atria and ventricles which causes ventricular systole.arrow_forwardSelect the TRUE statement/s: 1 Normal ECG is A S OA) Atrial repolarization occurs during the QRS wave O B) Ventricular repolarization occurs during the T wave OC) P wave precedes atrial relaxation OD) Both A and B OE) Both A and Carrow_forward
- 40- In the brain the frontal lobe has Oa. Voluntary motor activity Ob. Speaking Oc. Reasoning Od. Problem solving Oe. All of the abovearrow_forwardWhich of the following is true of the EKG? A. Depolarization of the atria cannot be seen on the EKG B. Repolarization of the atria cannot be seen on the EKG. C. Depolorization of the ventricles cannot be seen on the EKG. D. Repolorazition of the ventricles cannot be seen on the EKG.arrow_forwardWhich of the following conditions might result in the back flow of blood through a weakened mitral valve? Group of answer choices a. High pressure in the left ventricle, low pressure in the left atrium b. High pressure in the left atrium, low pressure in the left ventricle c. High pressure in the right ventricle, low pressure in the right atrium d. High pressure in the right atrium, low pressure in the right ventriclearrow_forward
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