LooseLeaf for Human Anatomy
5th Edition
ISBN: 9781259285271
Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 23, Problem 3DCR
The internal thoracic artery is frequently used as a coronary bypass vessel (a replacement artery for a blocked coronary artery). What makes this vessel a good choice for this surgery? Will blood flow to the thoracic wall be compromised as a result? Why or why not?
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In coronary bypass surgery, the internal thoracic artery can be used as the bypass vessel by suturing its distal end onto the obstructed coronary artery in the heart wall. Explain why using this vessel is superior to using the great saphenous vein of the leg.
Fill in the table below by indicating the organ, region or vessel that the named vessel receives blood from, and the organ, region or vessel to which it delivers blood (see example for aorta and coronary arteries). If you’re doing it right, both columns will have the same answer. You will need to refer to the images in your textbook and lab models to do this.
VESSELS OF THE THORACIC CAVITY
Artery
Blood goes to (organ/region)
Blood comes from (organ/region)
Vein
Aorta
entire systemic circuit
entire systemic circuit
vena cava inferior & superior
coronary left & right
myocardium
coronary left & right
Brachiocephalic
Brachiocephalic
subclavian left & right
subclavian left & right
Intercostals
azygos (not pictured)
Pulmonary
Pulmonary
VESSELS OF THE ABDOMINAL CAVITY
Artery
Blood goes to (organ/region)
Blood comes from (organ/region)
Vein
celiac trunk…
Dr. 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 artery
Chapter 23 Solutions
LooseLeaf for Human Anatomy
Ch. 23 - What is the structure and function of an...Ch. 23 - Describe the capillary types. List a location for...Ch. 23 - Explain how valves and muscular pumps help veins...Ch. 23 - What is blood pressure? What are the similarities...Ch. 23 - Prob. 5WYLCh. 23 - Prob. 6WYLCh. 23 - Prob. 7WYLCh. 23 - What three main branches arise from the celiac...Ch. 23 - Prob. 9WYLCh. 23 - Prob. 10WYL
Ch. 23 - Prob. 11WYLCh. 23 - Prob. 12WYLCh. 23 - Prob. 13WYLCh. 23 - Prob. 14WYLCh. 23 - Prob. 15WYLCh. 23 - The hepatic portal system is formed primarily from...Ch. 23 - Prob. 17WYLCh. 23 - Match each numbered item with the most closely...Ch. 23 - Prob. 1MCCh. 23 - Some venous blood from the upper limb drains...Ch. 23 - Prob. 3MCCh. 23 - Prob. 4MCCh. 23 - Which statement is true about veins? a. Veins...Ch. 23 - Prob. 6MCCh. 23 - Which of the following veins typically does not...Ch. 23 - After birth, the umbilical vein becomes the a....Ch. 23 - Prob. 9MCCh. 23 - Prob. 10MCCh. 23 - Prob. 1CRCh. 23 - Prob. 2CRCh. 23 - Prob. 3CRCh. 23 - Prob. 4CRCh. 23 - Prob. 5CRCh. 23 - Prob. 6CRCh. 23 - Prob. 7CRCh. 23 - Prob. 8CRCh. 23 - Prob. 9CRCh. 23 - What postnatal changes occur in the heart and...Ch. 23 - Prob. 1DCRCh. 23 - Prob. 2DCRCh. 23 - The internal thoracic artery is frequently used as...
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- The abnormal narrowing of the lumen of a vein is known as _____________________.arrow_forwardThe abnormal narrowing of a blood vessel is ____________________.arrow_forwardSelect the best answer or answers from the choices given: Tracing the blood from the heart to the right hand, we find that blood leaves the heart and passes through the aorta, the right subclavian artery, the axillary and brachial arteries, and through either the radial or ulnar artery to arrive at the hand.Which artery is missing from this sequence? (a) coronary, (b) brachiocephalic, (c) cephalic, (d) right common carotid.arrow_forward
- The great cardiac vein is the main tributary of the coronary sinus. With which artery does the great cardiac vein travel? right marginal branch posterior interventricular artery right coronary artery anterior interventricular artery left marginal arteryarrow_forwardThe great saphenous vein is the largest superficial vein of the lower limb and it drains the medial leg and thigh and empties into the femoral vein. The surgeon chooses this because it is the vein that connects to the other veins?arrow_forwardIn humans, the brachiocephalic trunk gives rise to which 2 of the following vessels? Pick 2 options: right subclavian artery left common carotid artery descending aorta O left subclavian artery O right common carotid arteryarrow_forward
- Varicose veins in the legs are common, but are there also varicose arteries in the legs? Why or why not?arrow_forwardIf the anterior descending artery had a blood clot at the point where it is formed, which of the following areas would suffer? left atrium and left ventricle right atrium and right ventricle left and right atria and interatrial septum Left and right ventricles and part of interventricular septumarrow_forwardA pressure point is a place where one presses on an artery through the body surface to stop bleeding more distally. Which of the following sites is not a pressure point for any major artery? (a) the medial bicipital furrow on arm, (b) the sciatic artery in middle of gluteus maximus, (c) the midinguinal point in the femoral triangle.arrow_forward
- The subclavian, axillary, and brachial arteries are really onecontinuous artery. What is the reason for giving it three different names along its course?arrow_forwardHow would you differentiate histologically the tunica media of a medium sized artery from that of the aorta? Explain in long explanationarrow_forward
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