Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 33, Problem 1AC
Summary Introduction
To describe:
The advantage of four-chambered heart with its two separate pumps.
Introduction:
The heart pumps blood throughout the body and provides transport of oxygen and the other gases. The number of chambers present in the heart defines the three major heart types; two-chambered, three-chambered, and four-chambered heart.
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3. Suppose it were the pulmonary semilunar valve that were stenotic. Which of the four chambers of the heart would have its workload increased the most and why?
1. Which phase of Ventricular Filling increases the volume of blood in the ventricles the most?
A.Isovolumetric Relaxation
B.Diastasis
C.Atrial Systole
D.Rapid Filling
2. Which graph would most directly show ventricular ejection?
A.Atrial, Ventricular, and Aortic Pressure
B.The EKG
C.Heart Ausculatation
D.Volume of Blood in the Ventricles
1- The left ventricular wall of the heart is thicker than the right wall in order to . A) accommodate a greater volume of blood B) pump blood through a smaller valve C) expand the thoracic cage during diastole D) pump blood with greater pressure
2- Blood within the pulmonary veins returns to the . A) left atrium B) left ventricle C) right atrium D) right ventricle
3- The condition where fluid compresses the heart and limits its ability to contract is called . A) angina pectoris B) myocardial infarction C) cardiac tamponade D) pericarditis
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Chapter 33 Solutions
Biology
Ch. 33.1 - Why doesnt insect hemolymph need hemoglobin?Ch. 33.1 - Prob. 1CYLCh. 33.1 - compare open and closed circulatory systems?Ch. 33.1 - describe the functions of the vertebrate...Ch. 33.2 - Prob. 1CSCCh. 33.2 - Prob. 1TCCh. 33.2 - Prob. 1HYEWCh. 33.2 - describe the three types of vertebrate hearts and...Ch. 33.2 - Prob. 2CYLCh. 33.2 - Prob. 3CYL
Ch. 33.3 - Prob. 1TCCh. 33.3 - Prob. 2TCCh. 33.3 - describe each component of blood and explain its...Ch. 33.3 - Prob. 2CYLCh. 33.3 - explain the sequence of events during blood...Ch. 33.4 - Prob. 1TCCh. 33.4 - Prob. 2TCCh. 33.4 - Prob. 1CYLCh. 33.4 - Prob. 2CYLCh. 33.4 - Prob. 3CYLCh. 33.5 - Prob. 1TCCh. 33.5 - Prob. 1CSCCh. 33.5 - Prob. 1CYLCh. 33.5 - Prob. 2CYLCh. 33.5 - Prob. 3CYLCh. 33 - Prob. 1MCCh. 33 - Which of the following is True? a. Arteriole...Ch. 33 - Prob. 3MCCh. 33 - Prob. 4MCCh. 33 - Which of the following is true of blood pressure?...Ch. 33 - Prob. 1FIBCh. 33 - Prob. 2FIBCh. 33 - The hearts pacemaker is called the (complete term)...Ch. 33 - Prob. 4FIBCh. 33 - Prob. 5FIBCh. 33 - Prob. 6FIBCh. 33 - Lymph is ___________ that has entered lymphatic...Ch. 33 - List the major structures of all circulatory...Ch. 33 - Describe and compare the features of open and...Ch. 33 - Explain how two- and three-chambered vertebrate...Ch. 33 - Prob. 4RQCh. 33 - Prob. 5RQCh. 33 - Prob. 6RQCh. 33 - Prob. 7RQCh. 33 - Prob. 8RQCh. 33 - Describe the cardiac cycle, and relate the...Ch. 33 - Prob. 10RQCh. 33 - Prob. 11RQCh. 33 - Prob. 12RQCh. 33 - In what way do veins and lymphatic vessels...Ch. 33 - Prob. 1ACCh. 33 - Prob. 2AC
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- A characteristic of blood circulation through or to the heart is that: a. the superior vena cava conveys blood to the head. b. the inferior vena cava conveys blood to the right atrium. c. the pulmonary arteries convey blood from the lungs to theleft atrium. d. the pulmonary veins convey blood into the left ventricle. e. the aorta branches into two coronary arteries that conveyblood from heart muscle.arrow_forwardWhich of the following lists the valves in the order through which the blood flows from the vena cava through the heart? tricuspid, pulmonary semilunar, bicuspid, aortic semilunar mitral, pulmonary semilunar, bicuspid, aortic semilunar aortic semilunar, pulmonary semilunar, tricuspid, bicuspid bicuspid, aortic semilunar, tricuspid, pulmonary semilunararrow_forwardThe ________ layer secretes chemicals that help to regulate ionic environments and strength of contraction and serve as powerful vasoconstrictors. pericardial sac endocardium myocardium epicardiumarrow_forward
- Characteristics of veins and venules are: a. thick walls. b. large muscle mass in the walls. c. a large quantity of elastin in the walls. d. low blood volume compared with arteries. e. one-way valves to prevent backflow of blood.arrow_forwardWhich of the following slows the heart rate and AV conduction? A. Resting membrane potential B. Parasympathetic nervous system C. Pacemaker D. Phase 0arrow_forwardAn electrical difference across the fibers of the heart is called the A. Absolute refractory period B. Resting membrane potential C. Action potential D. Depolarizationarrow_forward
- Which of the following is not important in preventing backflow of blood? chordae tendineae papillary muscles AV valves endocardiumarrow_forwardContraction of __________ drives the flow of blood through the aorta and pulmonary arteries. a. atria b. ventriclesarrow_forwardWhich of the following best describes veins? thick walled, small lumens, low pressure, lack valves thin walled, large lumens, low pressure, have valves thin walled, small lumens, high pressure, have valves thick walled, large lumens, high pressure, lack valvesarrow_forward
- The tricuspid valve lies between the A. Right atrium and the right ventricle B. Left ventricle and the aorta C. Right ventricle and the pulmonary artery D. Left atrium and the left ventriclearrow_forward9. The force the ventricles must work against to pump blood is called A. Myocardial contractility B. Ventricular afterload C. Negative inotropism D. Ventricular preloadarrow_forwardWhich chamber initially receives blood from the systemic circuit? left atrium left ventricle right atrium right ventriclearrow_forward
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