SEELEY'S ANATOMY CUSTOM LL
11th Edition
ISBN: 9781260533699
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 20, Problem 8CT
Explain why it is sufficient to replace the ventricles. but not atria, in artificial heart transplantation.
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Explain why it is sufficient to replace the ventricles, but not the atria,in artificial heart transplantation.
Although not considered the primary pacemaker of the heart, the atrioventricular node can indeed be considered as playing SOME role in setting the rhythm of the heart (kind of a secondary pacemaker). Explain how/why.
compare and contrast the difference between, right, left, and biventricular heart failure. Explain why a patient could have right-sided heart failure.
Chapter 20 Solutions
SEELEY'S ANATOMY CUSTOM LL
Ch. 20.1 - State the four functions of the heart.Ch. 20.2 - What is the approximate size and shape of the...Ch. 20.2 - Where is the heart located? How does this...Ch. 20.3 - Describe the parts of the pericardium and their...Ch. 20.3 - Describe the three layers of the heart wall, and...Ch. 20.3 - Name the chambers of the heart, and describe their...Ch. 20.3 - List the major blood vessels that enter and leave...Ch. 20.3 - Prob. 8AYPCh. 20.3 - Prob. 9AYPCh. 20.3 - Prob. 10AYP
Ch. 20.3 - Describe the openings of the right and left atria....Ch. 20.3 - Prob. 12AYPCh. 20.3 - Prob. 13AYPCh. 20.3 - Prob. 14AYPCh. 20.4 - Prob. 15AYPCh. 20.5 - Prob. 16AYPCh. 20.5 - Prob. 17AYPCh. 20.5 - Prob. 18AYPCh. 20.5 - Prob. 19AYPCh. 20.5 - Identify the parts of the conducting system of...Ch. 20.5 - Prob. 21AYPCh. 20.5 - Prob. 22AYPCh. 20.6 - Prob. 23AYPCh. 20.6 - Prob. 24AYPCh. 20.6 - Prob. 25AYPCh. 20.6 - Prob. 26AYPCh. 20.6 - What does an ECG measure? Nome the waves...Ch. 20.7 - Define systole and diastole.Ch. 20.7 - List the five periods of the cardiac cycle (see...Ch. 20.7 - Define isovolumetric. When does most ventricular...Ch. 20.7 - Prob. 31AYPCh. 20.7 - Prob. 32AYPCh. 20.7 - Prob. 33AYPCh. 20.8 - Prob. 34AYPCh. 20.8 - Explain the role of MAP in causing blood flow.Ch. 20.8 - Prob. 36AYPCh. 20.8 - Prob. 37AYPCh. 20.9 - Prob. 38AYPCh. 20.9 - Prob. 39AYPCh. 20.9 - Prob. 40AYPCh. 20.9 - Prob. 41AYPCh. 20.9 - Prob. 42AYPCh. 20.9 - Prob. 43AYPCh. 20.10 - Prob. 44AYPCh. 20.10 - Prob. 45AYPCh. 20.10 - What effect does an increase or a decrease...Ch. 20.10 - Prob. 47AYPCh. 20.11 - Prob. 48AYPCh. 20.11 - Prob. 49AYPCh. 20.11 - Prob. 50AYPCh. 20.11 - Prob. 51AYPCh. 20 - Which of these structures returns blood to the...Ch. 20 - Prob. 2RACCh. 20 - Prob. 3RACCh. 20 - Prob. 4RACCh. 20 - Prob. 5RACCh. 20 - Prob. 6RACCh. 20 - Action potentials pass from one cardiac muscle...Ch. 20 - During the transmission of action potentials...Ch. 20 - Given these structures of the conducting system of...Ch. 20 - Prob. 10RACCh. 20 - Prob. 11RACCh. 20 - The greatest amount of ventricular filling occurs...Ch. 20 - Prob. 13RACCh. 20 - Prob. 14RACCh. 20 - Prob. 15RACCh. 20 - Cardiac output is defined as blood pressure times...Ch. 20 - Pressure in the aorta is at its lowest a. at the...Ch. 20 - Prob. 18RACCh. 20 - Prob. 19RACCh. 20 - Prob. 20RACCh. 20 - Prob. 21RACCh. 20 - Increased parasympathetic stimulation of the heart...Ch. 20 - Prob. 23RACCh. 20 - Prob. 24RACCh. 20 - Prob. 25RACCh. 20 - Prob. 1CTCh. 20 - In most tissues, peak blood flow occurs during...Ch. 20 - Prob. 3CTCh. 20 - Prob. 4CTCh. 20 - A patient has tachycardia. Would you recommended a...Ch. 20 - Prob. 6CTCh. 20 - A doctor lets you listen to a patient's heart with...Ch. 20 - Explain why it is sufficient to replace the...Ch. 20 - Prob. 9CTCh. 20 - Prob. 10CTCh. 20 - Prob. 11CT
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- A patient suffering from hypertension may receive drugs that decrease the hearts output, dilate arterioles, or increase urine production. In each case, how would the drug treatment help relieve hypertension?arrow_forwardExplain why the SA node normally paces the heart.arrow_forwardGiven the role of potassium in myocardial cell action potentials, explain how hyperkalemia can stop the heart. Make sure to explain in terms of ion movementsarrow_forward
- The rapid depolarization phase of heart pacemaker cells is caused by which of the following? movement of Na+ through funny channels movement of Ca++ through L-type channels movement of Na+ and Ca++ through funny channels movement of K+ through funny channels all of the abovearrow_forwardExplain why it is more efficient for contraction of the ventricles to beginat the apex of the heart than at the base.arrow_forwardWhen the SA node doesn’t function properly, the AV node takes over pacing the heart and produces what is known as a junctional rhythm. Explain why we don’t see P waves on the ECG of an individual with such a rhythm?arrow_forward
- Put the progression of the electrical excitation of the heart muscle in the right order Atrial walls Sa nodes AV bundle AV node Purkinje fibersarrow_forwardGive a term to describe the statement. All valves are closed and the volume of blood remains constant within the relaxing ventricles.arrow_forwardA patient is suffering from cardiac arrhythmias. They have atrial fibrillation. Describethe normal conduction pathway of heart, starting with the AV node. On an ECG, how might atrial fibrillations present (or how would an ECG be altered for someone with atrial fibrillations)? A different patient (not the one above!!) had to have Atropine administered, which is a parasympathetic antagonist. FIRST, describe what the parasympathetic system does to the heart, including what neurotransmitter it uses and the mechanism of action on the heart. NEXT, explain the effects atropine would have on the heart and whyone common side effect is dry mouth. You also tended to a verbose and flamboyantly dressed zookeeper who came in with a gun strapped to his waist (remember, no names! Lawsuits! HIPPA!). He had been mauled by a tiger and an artery had been hit, causing loss of blood. Describethe immediate cardiovascular reflex this patient’s body started to counter the sudden drop in blood volume and the…arrow_forward
- Consider a hypothetical disorder where a patient did not have an arterioventricular-bundle. As a result, the action potential radiated from the AV node down to the apex of the heart. Sketch/describe how the resultant EKG would differ from a healthy patient’s EKG.arrow_forwardThe right and left atria of the heart look alike and perform similar functional demands. The right and left ventricle are very different, structurally and functionally. Why are the atria similarities and the difference in the ventricles significant in the role they play in the functional activity of the heart? How would these differences be manifested on an EKG, with details given to the P wave and QRS complex?arrow_forwardMatch the following parts of an ECG tracing to the events in the heart that happen at the same time. QRS complex Beginning of p wave Period between t wave and the next p wave Completion of p wave Heart events The SA node fires Depolarization of the ventricles The ventricles fill with blood The atria contractarrow_forward
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