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 36CTQ
Why is it so important for the human heart to develop early and begin functioning within the developing embryo?
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Where does the heart come from? Does it form the same way in both insects and vertebrates?
VSD, or ventricular septal defect, is a condition that accounts for half of all congenital cardiovascular anomalies. In this condition, a hole exists in the septum, the muscular wall between the ventricles, which allows blood from the right and left side of the heart to mix. What sort of problems might this condition cause?
Left Atrium
Right Atrium
Left Ventricle
Right Ventricle
b) On the diagram of the heart above, use arrows to show the pathway of blood
through the heart and its associated vessels.
c) Use a blue colored pencil to shade in all regions of the heart that carry
deoxygenated blood and a red colored pencil to shade in the regions that carry
oxygenated blood.
Conclusion:
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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- Pick all the correct answers for electrocardiogram (EKG). A) measures the electrical activity of the heart B) measures the cardiac output of the heart C) utilized to diagnose abnormal rhythms of the heart D) utilized to measure brain function CHAarrow_forwardSome babies are born with a heart defect in which the ventricles are connected to the wrong arteries—that is, the right ventricle sends blood to the aorta, and the left ventricle sends blood to the pulmonary trunk. What is the problem with this arrangement?arrow_forwardWhat tissue in the heart is responsible for setting the heart rate and stimulating the cardiac muscle to contract?arrow_forward
- Why do you think it is important for heart valves to ensure that blood flows in only one direction in the heart?arrow_forwardWhich of the following statements concerning the heart is TRUE? A) The SA node is located in the interventricular septum B) The bundle of His is located in the interventricular septum C) The Purkinje fibers stimulate the ventricles in a superior to inferior direction D) Both A & C E) All of the abovearrow_forwardWhich of the following statements about the heart is TRUE? A) The sinoatrial node generates the fastest action potentials in the heart B) The parasympathetic branch of the nervous system decreases heart rate C) The sinoatrial node passes the action potentials to the AV node D) Both B & C E) All of the abovearrow_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