Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 20, Problem 20RQ
The coronary arteries branch off of the ________.
- aortic valve
- ascending aorta
- aortic arch
- thoracic aorta
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The aortic semilunar valve has ____ pocket-like flaps of tissue.
The wall of the aorta is _______ (thicker/thinner) than the wall of the superior vena cava.
A stenotic valve __________________.
Group of answer choices
1) has an opening that is narrowed, allowing less blood to move through the valve.
2)between the atrium and ventricle in the L heart, would back up blood in the ventricle.
3)can only occur in the bicuspid valve
4)never occurs in a young (under 65 years) individual
Chapter 20 Solutions
Anatomy & Physiology
Ch. 20 - Watch this video...Ch. 20 - Listen to this CDC podcast...Ch. 20 - The endothelium is found in the ________. tunica...Ch. 20 - Nervi vasorum control ________. vasoconstriction...Ch. 20 - Closer to the heart, arteries would be expected to...Ch. 20 - Which of the following best describes veins? thick...Ch. 20 - An especially leaky type of capillary found in the...Ch. 20 - In a blood pressure measurement of 110/70, the...Ch. 20 - A healthy elastic artery ________. is compliant...Ch. 20 - Which of the following statements is true? The...
Ch. 20 - Slight vasodilation in an arteriole prompts a...Ch. 20 - Venoconstriction increases which of the following?...Ch. 20 - Hydrostatic pressure is ________. greater than...Ch. 20 - Net filtration pressure is calculated by ________....Ch. 20 - Which of the following statements is true? In one...Ch. 20 - Clusters of neurons in the medulla oblongata that...Ch. 20 - In the renin-angiotensin-aldosterone mechanism,...Ch. 20 - In the myogenic response, ________. muscle...Ch. 20 - A form of circulatory shock common in young...Ch. 20 - The coronary arteries branch off of the ________....Ch. 20 - Which of the following statements is true? The...Ch. 20 - Arteries serving the stomach, pancreas, and liver...Ch. 20 - The right and left brachiocephalic veins ________....Ch. 20 - The hepatic portal system delivers blood from the...Ch. 20 - Blood islands are ________. clusters of...Ch. 20 - Which of the following statements is true? Two...Ch. 20 - The ductus venosus is a shunt that allows...Ch. 20 - Arterioles are often referred to as resistance...Ch. 20 - Cocaine use causes vasoconstriction. Is this...Ch. 20 - A blood vessel with a few smooth muscle fibers and...Ch. 20 - You measure a patients blood pressure at 130/85....Ch. 20 - An obese patient comes to the clinic complaining...Ch. 20 - A patient arrives at the emergency department with...Ch. 20 - True or false? The plasma proteins suspended in...Ch. 20 - A patient arrives in the emergency department with...Ch. 20 - Nitric oxide is broken down very quickly after its...Ch. 20 - Identify the ventricle of the heart that pumps...Ch. 20 - What organs do the gonadal veins drain?Ch. 20 - What arteries play the leading roles in supplying...Ch. 20 - All tissues, including malignant tumors, need a...Ch. 20 - Explain the location and importance of the ductus...
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- The term endarterial means pertaining to the interior or lining of an artery. ________ _________ ________ ________arrow_forwardPlease label starting from question 31. Aorta2. Pulmonary Arteryarrow_forwardDuring exercise, the regulation of blood flow to the skeletal muscle occurs at the____________. Group of answer choices Aorta Vena Cava arterioles venuolesarrow_forward
- One complete heart beat goes from _______.arrow_forwardAn aneurysm which is symmetrical along the long axis of an artery is called a ___. saccular aneurysm retrograde aneurysm fusiform aneurysm retrograde varixarrow_forwardIf an artery becomes clogged with plaque, a procedure called a/an ______ can be performed to open up the artery and put a stent in to help keep it openarrow_forward
- The ___ (which chamber?) pumps blood into the aorta.arrow_forwardWhen the nature of an artery changes from elastic to rigid because of changes in the walls, not the lumen, of the artery, this condition is called ___. aneurysm arteriosclerosis varices atherocsclerosisarrow_forwardWhen the layers of an artery become rigid and no longer can stretch, the condition is called ___. pericardial tamponade arteriosclerosis atherosclerosis hematemesisarrow_forward
- The location in the heart indicated by letter ___ is the last one to get activatedarrow_forwardWhen the lumen of an artery is filled with plaque, cholesterol, or calcium salts, the condition is called ___. aneurysm ecchymosis atherosclerosis arteriosclerosisarrow_forwardBlood flows directly from __________ into capillary beds. A arterioles B venules C muscular arteries D elastic arteriesarrow_forward
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