Laboratory Manual for Human Anatomy & Physiology Main Version
4th Edition
ISBN: 9781260159110
Author: Terry Martin
Publisher: Mcgraw-hill Higher Education (us)
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Textbook Question
Chapter 45, Problem 5PL
The SA node of the heart is located in the
a. right atrium.
b. left atrium.
c. left ventricle.
d. right ventricle.
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Venous blood draining from the heart wall enters the right atrium through the a. coronary sinus. b. inferior vena cava. c. pulmonary veins. d. superior vena cava.
The Lumbar artery is a:
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B. Parietal branch of the aorta
C. Not a branch of the aorta
D. Terminal branch of the aorta
The Common Iliac artery is a:
A. Visceral branch of the aorta
B. Parietal branch of the aorta
C. Not a branch of the aorta
D. Terminal branch of the aorta
Chapter 45 Solutions
Laboratory Manual for Human Anatomy & Physiology Main Version
Ch. 45 - The _______ of the conduction system is known as...Ch. 45 - The ________ of the conduction system is/are...Ch. 45 - The first of two heart sounds (lubb) occurs when...Ch. 45 - One cardiac cycle would consist of a. left chamber...Ch. 45 - The SA node of the heart is located in the a....Ch. 45 - The depolarization of ventricular fibers is...Ch. 45 - The dupp sound occurs when the semilunar valves...Ch. 45 - The P wave of an ECG occurs during the...Ch. 45 - The period during a heart is contracting is called...Ch. 45 - The period during which a heart chamber is...
Ch. 45 - During ventricular contraction, the AV valves...Ch. 45 - During ventricular relaxation, the AV valves are...Ch. 45 - The pulmonary and aortic valves open when the...Ch. 45 - The first sound of a cardiac cycle occurs when the...Ch. 45 - The second sound of a cardiac cycle occurs when...Ch. 45 - The sound created when blood leaks back through an...Ch. 45 - What changes did you note in the heart sounds when...Ch. 45 - What changes did you note in the heart sounds...Ch. 45 - Prob. 3.1ACh. 45 - The ____________________ node is located in the...Ch. 45 - The fibers that carry cardiac impulses from the...Ch. 45 - Prob. 3.4ACh. 45 - The P wave corresponds to depolarization of the...Ch. 45 - The QRS complex corresponds to depolarization of...Ch. 45 - The T wave corresponds to repolarization of the...Ch. 45 - Why is atrial repolarization not observed in the...Ch. 45 - Identify the heart chambers and conduction system...Ch. 45 - How much time passed from the beginning of the P...Ch. 45 - What is the significance of this P-R interval?Ch. 45 - How can you determine heart rate from an...Ch. 45 - As blood in the ventricles surges back against the...
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- Which heart chamber has the thickest wall? a. right atrium c. left atrium b. right ventricle d. left ventriclearrow_forwardThe Internal Iliac artery is a: A. Visceral branch of the aorta B. Parietal branch of the aorta C. Not a branch of the aorta D. Terminal branch of the aortaarrow_forwardThe Right Subclavian artery is a: A. Visceral branch of the aorta B. Parietal branch of the aorta C. Not a branch of the aorta D. Terminal branch of the aortaarrow_forward
- The Right internal carotid artery is a: A. Visceral branch of the aorta B. Parietal branch of the aorta C. Not a branch of the aorta D. Terminal branch of the aortaarrow_forwardWhich portion of the heart contains the most myocardium? Select one: a.right atrium b.left atrium c.left ventricle d.right ventricle e.both right and left ventriclesarrow_forwardThe only area of the heart that receives innervation from the brain is called the: A. Atrioventricular bundle B. Atrioventricular node C. Sinoatrial node D. Interatrial Fiberarrow_forward
- The Brachiocephalic artery is a: A. Branch of the ascending aorta B. Branch of the abdominal aorta C. Branch of the arch of the aorta D. Branch of the thoracic aortaarrow_forwardThe innermost serous membrane attached to the heart muscle is called the: a. visceral pericardium. b. visceral peritoneum. c. visceral pleura. d. parietal pericardiumarrow_forwardWhich of the following structures provides the anchoring site for the valves of the heart and prevents the conduction of electrophysiologic impulses form the atria to the ventricles? A. Chordae Tendineae B. Fibrous Pericardium C. Fibrous Skeleton of the heart D. MyocardiumE. Sinus Venosumarrow_forward
- What forms an external boundary between the atria and the venticles on the surface of the heart? Select one: a.interventricular sulcus b.coronary sulcus c.interatrial septum d.interatrial septum e.fossa ovalisarrow_forwardThe valve located between the right atrium and the right ventricle is thea. aortic semilunar valve. c. tricuspid valve.b. pulmonary semilunar valve. d. bicuspid (mitral) valve.arrow_forwardPressure in the aorta is at its lowest a. at the time of the first heart sound. b. at the time of the second heart sound. c. just before the AV valves open. d. just before the semilunar valves openarrow_forward
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