Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Chapter 18.4, Problem 5QC
Summary Introduction
To review:
The effect of increase or decrease in blood pressure on tissue perfusion and arterioles through myogenic mechanism.
Introduction:
Tissue perfusion is the process by which blood flows intotissues via capillary beds. It depends upon the pressure of blood inside the arterioles. If arteriolar pressure is very low, then the tissue would not be able to get perfused in the blood, and hence, it would not be able to receive the necessary components dissolved in the blood. The tissues are able to autoregulate blood perfusion depending upon their
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Chapter 18 Solutions
Human Anatomy & Physiology
Ch. 18.1 - Define the three types of blood vessels in the...Ch. 18.1 - Prob. 2QCCh. 18.1 - Prob. 3QCCh. 18.1 - Prob. 4QCCh. 18.1 - Prob. 5QCCh. 18.1 - 6. How do veins differ structurally and...Ch. 18.1 - Prob. 7QCCh. 18.1 - What are venous valves, and what are their...Ch. 18.1 - Prob. 9QCCh. 18.2 - Prob. 1QC
Ch. 18.2 - Prob. 2QCCh. 18.2 - Prob. 3QCCh. 18.2 - Prob. 4QCCh. 18.2 - Prob. 5QCCh. 18.2 - Prob. 6QCCh. 18.2 - 7. How does mean arterial pressure differ from...Ch. 18.2 - Prob. 8QCCh. 18.2 - Prob. 9QCCh. 18.3 - Prob. 1QCCh. 18.3 - Prob. 2QCCh. 18.3 - Prob. 3QCCh. 18.3 - Prob. 4QCCh. 18.3 - Prob. 5QCCh. 18.3 - Prob. 6QCCh. 18.3 - Prob. 7QCCh. 18.3 - 8. What is circulatory shock, and why is it...Ch. 18.4 - Describe the structure and size of a typical...Ch. 18.4 - 2. List three ways in which substances may cross...Ch. 18.4 - 3. Describe the properties of the three types of...Ch. 18.4 - 4. What is tissue perfusion?
Ch. 18.4 - Prob. 5QCCh. 18.4 - Prob. 6QCCh. 18.4 - Prob. 7QCCh. 18.4 - Prob. 8QCCh. 18.4 - Prob. 9QCCh. 18.5 - What is hydrostatic pressure? How does hydrostatic...Ch. 18.5 - 2. In which direction does the hydrostatic...Ch. 18.5 - Prob. 3QCCh. 18.5 - Prob. 4QCCh. 18.5 - Where in the capillary does net filtration take...Ch. 18.5 - Prob. 6QCCh. 18.6 - List the three branches of the aortic arch.Ch. 18.6 - Prob. 2QCCh. 18.6 - Prob. 3QCCh. 18.6 - Prob. 4QCCh. 18.6 - Which arteries supply the anterior and posterior...Ch. 18.6 - Prob. 6QCCh. 18.6 - Which artery supplies the upper limb?Ch. 18.6 - Trace the arterial supply of the upper limb from...Ch. 18.6 - 9. Which artery supplies the lower limb?
Ch. 18.6 - Trace the arterial supply of the lower limb from...Ch. 18.6 - Prob. 11QCCh. 18.7 - Where do most veins superior to the diaphragm...Ch. 18.7 - Prob. 2QCCh. 18.7 - Where are the dural sinuses located? What drains...Ch. 18.7 - How does drainage of the posterior body wall...Ch. 18.7 - 5. Which abdominal vessels drain straight into...Ch. 18.7 - Prob. 6QCCh. 18.7 - Prob. 7QCCh. 18.7 - Prob. 8QCCh. 18.7 - Prob. 9QCCh. 18.7 - Prob. 10QCCh. 18 - Prob. 1CYRCh. 18 - Locations where vessels connect via collateral...Ch. 18 - Prob. 3CYRCh. 18 - 4. Which of the following factors would increase...Ch. 18 - Which of the following would produce a decrease in...Ch. 18 - Fill in the blanks: The two pressures within the...Ch. 18 - The lowest pressure in the systemic circuit occurs...Ch. 18 - Explain the mechanisms that assist in the return...Ch. 18 - Mark the following statements as true or false. If...Ch. 18 - The carotid sinus contains: a. baroreceptors. b....Ch. 18 - Capillaries consist of: a. three thin tunics. b....Ch. 18 - List three ways in which substances can cross the...Ch. 18 - Which of the following structures is the leakiest?...Ch. 18 - Prob. 14CYRCh. 18 - 15. The hydrostatic pressure gradient drives water...Ch. 18 - Prob. 16CYRCh. 18 - Match the following arteries with the correct...Ch. 18 - Which of the following is not a common pulse...Ch. 18 - 19. Which of the following vessels does not drain...Ch. 18 - Match the following veins with the correct...Ch. 18 - 1. Explain why a severed artery spurts blood,...Ch. 18 - 2. Explain why a person who is 7 feet tall is...Ch. 18 - Prob. 3CYUCh. 18 - Prob. 1AYKACh. 18 - Prob. 2AYKACh. 18 - Predict the effects of each of the following on...Ch. 18 - Prob. 4AYKBCh. 18 - Ms. Rodgers has been diagnosed with secretion of...
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- Several years ago the deaths of several airline travelers led to warnings about economy-class syndrome. The idea is that economy-class passengers dont have as much leg room as passengers in more expensive seats, so they are more likely to sit essentially motionless for long periods on flightsconditions that may allow blood to pool and clots to form in the legs. This condition is called deep-vein thrombosis, or DVT. Given what you know about blood flow in the veins, explain why periodically getting up and moving around in the planes cabin during a long flight may lower the risk that a clot will form.arrow_forwardDescribe the relationship among blood flow, bloodpressure, and resistance.arrow_forwardList the major factors affecting blood flow, blood pressure, and resistancearrow_forward
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