Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 18, Problem 16CYU
Summary Introduction
To review:
Name of the arterial anastomosis at the base of the cerebrum.
Introduction:
The part of a circulatory system that carries the blood from the heart to different parts of the body (except lungs) and then returns to the heart is called a systemic circuit. Arteries, veins, and capillaries are the major blood vessels carrying blood. Arteries carry blood away from the heart, whereas veins carry blood towards the heart.
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Chapter 18 Solutions
Anatomy & Physiology
Ch. 18 - Which branch of the autonomic nervous system...Ch. 18 - When vascular smooth muscle contracts, what...Ch. 18 - Name the type of artery that matches each...Ch. 18 - Prob. 4CYUCh. 18 - Prob. 5CYUCh. 18 - In the systemic circuit, which contains more...Ch. 18 - List three factors that determine resistance in a...Ch. 18 - Suppose vasoconstriction decreases the diameter of...Ch. 18 - Prob. 9CYUCh. 18 - The kidneys play an important role in maintaining...
Ch. 18 - Suppose you are in a bicycle race. What happens to...Ch. 18 - If many arterioles in your body dilated at once,...Ch. 18 - Prob. 13CYUCh. 18 - Your neighbor, Bob, calls you because he thinks he...Ch. 18 - Prob. 15CYUCh. 18 - Prob. 16CYUCh. 18 - Prob. 17CYUCh. 18 - You are assessing the circulation in the leg of a...Ch. 18 - In what important way does the area drained by the...Ch. 18 - Prob. 20CYUCh. 18 - Prob. 21CYUCh. 18 - Name the leg veins that often become varicosed.Ch. 18 - Prob. 23CYUCh. 18 - Which statement does not accurately describe...Ch. 18 - Smooth muscle in the blood vessel wall (a) is...Ch. 18 - Peripheral resistance (a) is inversely...Ch. 18 - Which of the following can lead to decreased...Ch. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - The structure of a capillary wall differs from...Ch. 18 - Prob. 8RQCh. 18 - The myocardium receives its blood supply directly...Ch. 18 - Blood flow in the capillaries is steady despite...Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Prob. 13RQCh. 18 - Prob. 14RQCh. 18 - How is the anatomy of capillaries and capillary...Ch. 18 - Prob. 16RQCh. 18 - Write an equation showing the relationship between...Ch. 18 - Prob. 18RQCh. 18 - Describe the neural mechanisms responsible for...Ch. 18 - Explain the reasons for the observed changes in...Ch. 18 - Prob. 21RQCh. 18 - Prob. 22RQCh. 18 - How are nutrients, wastes, and respiratory gases...Ch. 18 - Prob. 24RQCh. 18 - Physiologists often consider capillaries and...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...
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- Name the valve present between left auricle and left ventricle.arrow_forwardName the site of the cardiac centers in the brain.Name the two types of cardiac centers. State the nerves stimulated and the effect on the heart when each of those cardiac centers are functioning.arrow_forwardTrace a drop of blood from Left Ventricle to the Upper Limbarrow_forward
- Describe the effect of an obstruction in the right anteriorcerebral artery.arrow_forwardFill in the numbered blanks with the name of the structure that corresponds with the number in the following paragraph. Fluid for the CSF is derived from the bloodstream. The sites of CSF formation are the (1), special tiny capillaries located in the walls of (2), (3), and (4). Cells that line the ventricles have cilia that move the CSF and are called (5). The two lateral ventricles are separated by a thin membrane called the (6). CSF flows by cilia movement from the two lateral v entricles through the interventricular foramen to the (7). From here, the CSF flows through the (8) into the fourth ventricle. The CSF leaves the fourth ventricle through three openings: the median aperture and two lateral apertures. CSF is now located in the (9) space around the brain, and circulates all around the cerebrum and cerebellum. CSF continues to flow into the inner part of the spinal cord by flowing through the tiny (10) of the spinal cord, as well as around the exterior of the spinal cord in the…arrow_forwardName the blood vessels that leaves right ventricle.arrow_forward
- Which areas of the brain are supplied by the PCA (posterior cerebral artery)?arrow_forwardKnow that the medulla oblongata is the “door”. Understand the significance of the cardiac, vasomotor and respiratory centers found in the reticular formation of the medulla oblongataarrow_forwardWhat is the importance of the azygos system relative to the inferior vena cava?arrow_forward
- How would an ineffective right ventricle affect the pulmonary and systemic circulation?arrow_forwardMatch each of the numbered cerebral arteries with its associated symptoms. A. posterior cerebral artery a. sensory loss and paralysis of contralateral leg and foot and mental impairments B. anterior cerebral artery b. contralateral hemiplegia (precentral gyrus), contralateral hemianesthesia (postcentral gyrus), homonymous hemianopsia, aphasia (dominant hemisphere), constructional apraxia (nondominant hemisphere), and cognitive impairments (prefrontal lobe) C. middle cerebral artery c. contralateral homonymous hemianopsia (calcarine branch), lower pain threshold (thalamic syndrome), upper midbrain symptoms (coma), and hemiballism (involvement of the subthalamus)arrow_forwardDescribe the circle of Willis and explain its role in supplying blood to the brain.arrow_forward
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