Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 19, Problem 26RQ
The pulmonary trunk and aorta are derived from which primitive heart structure?
- bulbus cordis
- primitive ventricle
- sinus venosus
- truncus arteriosus
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Which of the following structures of the heart is responsible for pumping the blood to the lungs?
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Which heart chambers are used as route between heart and the entire body?
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Chapter 19 Solutions
Anatomy & Physiology
Ch. 19 - Visit this site...Ch. 19 - Which of the following is not important in...Ch. 19 - Which valve separates the left atrium from the...Ch. 19 - Which of the following lists the valves in the...Ch. 19 - Which chamber initially receives blood from the...Ch. 19 - The ________ layer secretes chemicals that help to...Ch. 19 - The myocardium would be the thickest in the...Ch. 19 - In which septum is it normal to find openings in...Ch. 19 - Which of the following is unique to cardiac muscle...Ch. 19 - The influx of which ion accounts for the plateau...
Ch. 19 - Which portion of the ECG corresponds to...Ch. 19 - Which component of the heart conduction system...Ch. 19 - The cardiac cycle consists of a distinct...Ch. 19 - Most blood enters the ventricle during ________....Ch. 19 - The first heart sound represents which portion of...Ch. 19 - Ventricular relaxation immediately follows...Ch. 19 - The force the heart must overcome to pump blood is...Ch. 19 - The cardiovascular centers are located in which...Ch. 19 - In a healthy young adult, what happens to cardiac...Ch. 19 - What happens to preload when there is venous...Ch. 19 - Which of the following is a positive inotrope? Na+...Ch. 19 - The earliest organ to form and begin function...Ch. 19 - Of the three germ layers that give rise to all...Ch. 19 - The two tubes that eventually fuse to form the...Ch. 19 - Which primitive area of the heart will give rise...Ch. 19 - The pulmonary trunk and aorta are derived from...Ch. 19 - Describe how the valves keep the blood moving in...Ch. 19 - Why is the pressure in the pulmonary circulation...Ch. 19 - Why is the plateau phase so critical to cardiac...Ch. 19 - How does the delay of the impulse at the...Ch. 19 - How do gap junctions and intercalated disks aid...Ch. 19 - Why do the cardiac muscles cells demonstrate...Ch. 19 - Describe one cardiac cycle, beginning with both...Ch. 19 - Why does increasing EDV increase contractility?Ch. 19 - Why is afterload important to cardiac function?Ch. 19 - Why is it so important for the human heart to...Ch. 19 - Describe how the major pumping chambers, the...
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- Which heart chamber has the thickest wall? a. right atrium c. left atrium b. right ventricle d. left ventriclearrow_forwardFigure 40.11 Which of the following statements about the heart is false? The mitral valve separates the left ventricle from the left atrium. Blood travels through the bicuspid valve to the left atrium. Both the aortic and the pulmonary valves are semilunar valves. The mitral valve is an atrioventricular valve.arrow_forwardContraction of _______ drives the flow of blood through the aorta and pulmonary arteries. a. atria b. veins c. arterioles d. Ventriclesarrow_forward
- _____ contraction drives blood through the systemic and pulmonary circuits; outside the heart, blood pressure is highest in the _____. a. Atrial; ventricles b. Atrial; atria c. Ventricular; arteries d. Ventricular; aortaarrow_forwardDescribe the cardiac cycle.arrow_forwardThe Greek anatomist Erasistratus, originally from Ceos, identified the correct function of the right atrioventricular valve of the human heart, which was to prevent backward flow of blood from: the right ventricle to the right atrium the right ventricle to the left ventricle the right ventricle to the left atrium the left ventricle to the right ventriclearrow_forward
- The Greek anatomist Erasistratus, originally from Ceos, identified the correct function of the right atrioventricular valve of the human heart, which was to prevent backward flow of blood from: the right ventricle to the right atrium the right ventricle to the left ventricle the right ventricle to the left atrium the left ventricle to the right ventricle the left ventricle to the left atriumarrow_forwardPut the flow of blood through the heart in the right order starting with vena cava. Vena cava Right atrium Aortal semilunar valve Pulmonary veins Right AV valve Left Ventricle Pulmonary arteries Lungs Left atrium Aorta Mitral valve Pulmonary semilunar valve Right ventriclearrow_forwardA 60-year-old woman receives a coronary angiogram following a myocardial infarction in order to evaluate the condition of her coronary circulation. Most blood draining from the heart wall (myocardium) will return to the heart through which of the following structures? Coronary sinus Superior vena cava Ascending aorta Pulmonary veins Inferior vena cavaarrow_forward
- the skeleton of heart is composed of * prominent loose connective tissue prominent loose regular connective tissue prominent dense irregular connective tissue reticular fiber non of abovearrow_forwardThe coronary sinus can be found on the posterior aspect of the of the heart. O right atrium right ventricle left ventricle O left atriumarrow_forwardWhich chambers of the heart receive blood, and which discharge it?arrow_forward
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