Principles of Anatomy and Physiology
15th Edition
ISBN: 9781119329398
Author: Gerard J Tortora, Bryan Derrickson
Publisher: John Wiley & Sons Inc
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Question
Chapter 21, Problem 25CP
Summary Introduction
To review:
The coronary artery branches that supply the blood to the left ventricle and the reason of extensive supply of the left ventricle of the heart.
Introduction:
Human heart includes two atrium and two ventricles. The oxygenated blood goes to the left atrium from the lungs and from it, the blood passes to the left ventricle, from which it is supplied to the organs of the body through the aorta. The ascending aorta emerges from the heart's left ventricle. It branches into two coronary arteries that supply the oxygenated blood to the heart's muscular tissue (myocardium).
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Chapter 21 Solutions
Principles of Anatomy and Physiology
Ch. 21 - Prob. 1CPCh. 21 - Prob. 2CPCh. 21 - Prob. 3CPCh. 21 - Prob. 4CPCh. 21 - Prob. 5CPCh. 21 - Prob. 6CPCh. 21 - Prob. 7CPCh. 21 - Define edema and describe how it develops.Ch. 21 - Prob. 9CPCh. 21 - Prob. 10CP
Ch. 21 - Prob. 11CPCh. 21 - Prob. 12CPCh. 21 - Prob. 13CPCh. 21 - Prob. 14CPCh. 21 - Prob. 15CPCh. 21 - Prob. 16CPCh. 21 - Prob. 17CPCh. 21 - Prob. 18CPCh. 21 - Prob. 19CPCh. 21 - Prob. 20CPCh. 21 - Prob. 21CPCh. 21 - 22. Describe the types of shock and their causes...Ch. 21 - What is the purpose of systemic circulation?Ch. 21 - Prob. 24CPCh. 21 - Prob. 25CPCh. 21 - Prob. 26CPCh. 21 - Prob. 27CPCh. 21 - Prob. 28CPCh. 21 - Prob. 29CPCh. 21 - Prob. 30CPCh. 21 - Prob. 31CPCh. 21 - Prob. 32CPCh. 21 - Prob. 33CPCh. 21 - Prob. 34CPCh. 21 - Prob. 35CPCh. 21 - Prob. 36CPCh. 21 - Prob. 37CPCh. 21 - Prob. 38CPCh. 21 - Prob. 39CPCh. 21 - Prob. 40CPCh. 21 - 1. Kim Sung was told that her baby was born with a...Ch. 21 - 2. Michael was brought into the emergency room...Ch. 21 - Prob. 3CTQ
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- Why is the left ventricle more muscular than the right ventricle?arrow_forwardWhy are the left and right coronary vessels considered the major coronary vessels?arrow_forwardWhy do the coronary arteries carry a greater blood flow during ventricular relaxation than they do during ventricular contraction?arrow_forward
- Why is the thickness of the myocardium different in the right and left ventricles?arrow_forwardWhat are the three principal branches of the left coronary artery? Where are they located on the heart surface? What are the branches of the right coronary artery, and where are they located?arrow_forwardIf a blood cell was ejected from the left ventricle, what must it pass through in order to get to the left atrium?arrow_forward
- Which component of the conducting system is located in thefloor of the right atrium, between the right AV valve and thecoronary sinus opening?arrow_forwardDamage to the semilunar valve of the right ventricle would affect blood flow into which vessel?arrow_forwardDr. J was performing a cardiac bypass on her 53-year-old male patient whose anterior interventricular artery was narrowed near its origin. For this procedure, she chose to use the left internal thoracic artery, leaving its origin intact and cutting its distal connection to attach it to the anterior interventricular artery just beyond the narrowed segment. This successfully restored blood flow to the anterior portion of the heart. What path does the blood take through this diverted route? Aortic arch to axillary artery to internal thoracic artery. O Aortic arch to the left subclavian to internal thoracic artery Aortic arch to left subclavian artery to pericardiacophernic artery to internal thoracic artery Aortic arch to brachiocephalic artery to internal thoracic artery Aortic arch to internal thoracic arteryarrow_forward
- List the major blood vessels and their origins involved in coronary circulation. (ii) At what stage or phase of the heart’s activities does the heart tissues becomes perfused with oxygenated blood? (iii) Define myocardial infarction. (iv) Explain the typical signs associated with acute myocardial infarction. (v) Outline/State which arteries of the heart are most commonly affected/occluded. (vi) Explain why occlusions lead to infarct in the heart. (vii) What is creatine phosphokinase (CPK) and why are elevated CPK levels in the blood suggestive of a myocardial infarction? (viii) What is cor pulmonale? (ix) Describe the main clinical findings (with cor pulmonale) on examination. Explain your answer.arrow_forwardWhat are the two main coronary arteries? What is the approximate length of the left main coronary artery? What are the branches of the LM? 1. 2. 3(?). Where does the LAD travel? What branches arise from the LAD? What areas of the heart do those vessels feed? What path does the circumflex artery travel? Define the crux of the heart? What are the branches off of the circumflex artery called? What areas of the heart do those vessels feed? Is the ramus branch always present? Yes No Where is the ramus branch located? Where does the RCA originate from? What path does the RCA travel? What branches off of the RCA? What artery feeds the SA node? What artery feeds the RV? What path does the PDA travel? What anatomy does the PDA supply? What is it called when the RCA crosses the crux and supplies part of the LV wall and the ventricular septum? What percentage of the population has this? What is it called when the circumflex crosses the crux and gives off the…arrow_forwardWhat is the role of the coronary arteries?arrow_forward
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