Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 44, Problem 7PL
Chordae tendineae connect the cusps of the AV valves to papillary muscles of the ventricles.
a. True_________
b. False_______
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Select the letter of the choice that best completes the statement. The valve between the right atrium and the right ventricle is called the a. tricuspid valve. b. aortic semilunar valve. c. bicuspid valve. d. pulmonary semilunar valve.
Determine the collective TRUE-FALSE status of the statements using the options below.
I. From the AV node, the impulse travels to the bundle of His.
II. From the bundle of His, the impulse branches to the right and left bundles.
III. The impulse that travels to the Purkinje fibers causes the ventricles to contract.
IV. If the SA node fails to fire, the AV node automatically takes over at the same rate.
Only two (2) statements are true.
Only two (2) statements are true.
Only three (3) statements are true.
Only three (3) statements are true.
All statements are true.
All statements are true.
None of the statements is true.
None of the statements is true.
Only one (1) statement is true.
The QRS-complex of the ECG is generated by the depolarization of the
AV-Node & Ventricular Myocardium.
A. true
B. false
Chapter 44 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 44 - The ________is the inferior end of the heart that...Ch. 44 - Oxygen-rich blood is located in the a. left-side...Ch. 44 - The two superior heart chambers are the a. left...Ch. 44 - Which of the following is an atrioventricular (AV)...Ch. 44 - The __________ lines the heart chambers. a....Ch. 44 - Which heart valve has two cusp s instead of three...Ch. 44 - Chordae tendineae connect the cusps of the AV...Ch. 44 - The systemic circuit delivers blood to the lungs...Ch. 44 - The right and left coronary arteries containing...Ch. 44 - FIGURE 44.13 Identity the features on this...
Ch. 44 - FIGURE 44.14 identity the features indicated on...Ch. 44 - FIGURE 44.15 Label this frontal section of the...Ch. 44 - Prob. 2.1ACh. 44 - Compare the structure of the left atrioventricular...Ch. 44 - Prob. 3.2ACh. 44 - What is the functional significance of the...Ch. 44 - List the correct pathway through which blood must...Ch. 44 - Describe the general overall shape of the left and...Ch. 44 - What was the measured thickness of the left...Ch. 44 - Explain the functional significance of the...
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- Choose the best answer Blood moving from the left atrium to the left ventricle passesthrough which of the following valves?a. bicuspid valveb. tricuspid valvec. aortic semilunar valved. pulmonary semilunar valvearrow_forwardSelect the letter of the choice that best completes the statement. The treatment for conduction defect may includea. coronary bypass.b. cardiotonics.c. insertion of a pacemaker.d. angioplasty.arrow_forwardA patient who has a history of coronary artery disease (CAD) is admitted with acute coronary syndrome (ACS). The EKG shows ST-segment depression. The nurse knows that this most likely indicates? a. Myocardial injury b. Myocardial infarction c. Pacemaker is present d. Myocardial ischemiaarrow_forward
- Fill in the blank: During ventricular relaxation, the A-V valves remain _______________________.arrow_forwardObstruction of this vessel causes a more severe myocardial infarction in comparison to other vessels. a. circumflex branch b. right marginal vein c. left coronary artery d. anterior interventricular brancharrow_forwardAreas of difficulty that would increase the need for a multi-point injection would be which one of the following possibilities? A. Continuity of the vascular system B. Localized congestion of the vascular system C. Longer antemortem interval D. Shorter final disposition intervalarrow_forward
- Fill in the blank: The pulmonary and aortic valves open when the pressure in the _______________________ exceeds the pressure in the pulmonary trunk and aorta.arrow_forwardThe superficial veins include the great and small saphenous veins. A. TRUE B. FALSEarrow_forwardThe epicardium is also known at the: A. parietal pericardium B. pericardial sac C. visceral pericardiumarrow_forward
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