Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159080
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: Mcgraw-hill Education,
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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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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
Fill in the blank:
During ventricular relaxation, the A-V valves remain _______________________.
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
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- Indicate the correct order of the sequence of events occurring during congestive heart failure. Order the sentences (Hint: End with "g") This question is a great summary of what happens, in steps, in congestive heart failure. a. narrowed bicuspid valve makes the L atrium pump harder in order to "push" blood into the L ventricle through an opening that is too narrow. b. pressure of the extra, backed up blood in the lung creates pressure in the capillaries that begin to leak fluid into the lung. c. extra "left-over" blood in the atrium that has not descended into the ventricle after a beat has nowhere to go. d. congenital heart defect causes a narrowed bicuspid valve e. not all blood gets "pushed" from the L atrium to the L ventricle during a regular heart beat f. blood that backed up in the L atrium with nowhere to go backs up further, into the pulmonary veins and eventually into the lung g. the patient gets less oxygen with each breath, feels tired all the time and is…arrow_forwardDetermine the collective TRUE-FALSE status of the statements using the options below. I. One of the semilunar valves is the pulmonary valve. II. The pulmonary valve prevents backflow from the pulmonary veins into the right atrium. III. The other semilunar valve is the aortic valve. IV. The aortic valve prevents backflow from the aorta into the left ventricle. O All statements are true. O Only three (3) statements are true. O Only one (1) statement is true. O None of the statements is true. O Only two (2) statements are true. 4arrow_forwardIdentify the TRUE statement (s). There may be several correct answers. A. An increased cardiac output is reflected in an elevated diastolic pressure.B. An increased cardiac output is reflected in a decreased diastolic pressure.C. An increase in the force of contraction produces an elevated systolic pressure.D. An increase in the force or ventricular contraction produces a decreased diastolic pressure.arrow_forward
- Match the valve structures with their function…write the number in the blank mitral valve tricuspid valve pulmonic semilunar valves aortic semilunar valves Prevents back flow of blood into the right atrium as right ventricular pressure exceeds the pressure in the right atrium ________________ Prevents back flow of blood into the left ventricle as aortic pressure exceeds the pressure in the left ventricle _____________ Prevents back flow of blood into the left atrium as left ventricular pressure exceeds the pressure in the left atrium _________________ Prevents back flow of blood into the right ventricle as pulmonary artery pressure exceeds right ventricular pressure ____________________arrow_forwardMatch the anatomic term in column II with its associated function in column I: Column I __________ 10. separates the right and left atria __________ 11. Located at the juncture of the superior vena cava and right atrium __________ 12. Supports the heart in the mediastinum __________ 13. Sits between the right ventricle and the pulmonary artery __________14. Distributes venous blood to the lungs __________15. Embedded in the right atrial wall near the tricuspid valve Column II a. Parietal pericardium b. Pulmonary artery c. Bicuspid Valve d. Pulmonic Valve e. Sinoatrial node f. Atrioventricular node g. Atrial Septumarrow_forwardA patient admitted to the hospital with myocardial infarction develops severe pulmonary edema. Which of the following symptoms should the nurse expect the patient to exhibit? A. Slow, deep respirations B. Stridor C. Bradycardia D. Air hungerarrow_forward
- This abnormal ECG indicates: A ventricular fibrillation B premature ventricular contractions (PVCs) C ST-segment elevation D premature atrial contractions (PACS) hahaharrow_forwardFill in the blank: The period during which a heart chamber is contracting is called _______________________.arrow_forwardFill in the blank: During ventricular contraction, the A-V valves (tricuspid and bicuspid valves) remain _______________________.arrow_forward
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