Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 15.5, Problem 13CC
In the classic movie Jurassic Park, Dr. Ian Malcolm must flee from the T. rex. Draw a reflex map showing the cardiovascular response to his fight-or-flight situation. Remember that fight-or-flight causes epinephrine secretion as well as output from the cardiovascular control center. (Hints: What is the stimulus? Fear is integrated in the limbic system.)
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Chapter 15 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 15.2 - Would you expect to find valves in the veins...Ch. 15.2 - Prob. 2CCCh. 15.2 - Who has the higher pulse pressure, someone with...Ch. 15.2 - The formula given for calculating MAP applies to a...Ch. 15.2 - Prob. 5CCCh. 15.3 - Resistance to blood flow is determined primarily...Ch. 15.3 - Prob. 7CCCh. 15.3 - Prob. 8CCCh. 15.3 - Skeletal muscle arterioles have both - and...Ch. 15.4 - Prob. 10CC
Ch. 15.4 - Prob. 11CCCh. 15.5 - Prob. 12CCCh. 15.5 - In the classic movie Jurassic Park, Dr. Ian...Ch. 15.6 - A man with liver disease loses the ability to...Ch. 15.6 - Prob. 15CCCh. 15.7 - Prob. 16CCCh. 15.7 - Malnourished children who have inadequate protein...Ch. 15 - Prob. 1RQCh. 15 - Prob. 2RQCh. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Prob. 5RQCh. 15 - Prob. 6RQCh. 15 - List the factors that aid venous return to the...Ch. 15 - Prob. 8RQCh. 15 - Prob. 9RQCh. 15 - Prob. 10RQCh. 15 - Prob. 11RQCh. 15 - Most systemic arterioles are innervated by the...Ch. 15 - Match each event in the left column with all...Ch. 15 - Which organs receive more than two-thirds of the...Ch. 15 - By looking at the density of capillaries in a...Ch. 15 - Prob. 16RQCh. 15 - Prob. 17RQCh. 15 - Define edema. List some ways in which it can...Ch. 15 - Prob. 19RQCh. 15 - Prob. 20RQCh. 15 - Calcium channel blockers prevent Ca2+ movement...Ch. 15 - Prob. 22RQCh. 15 - Prob. 23RQCh. 15 - Define myogenic autoregulation. What mechanisms...Ch. 15 - Left ventricular failure may be accompanied by...Ch. 15 - Robert is a 52-year-old nonsmoker. He weighs 180...Ch. 15 - The following figure is a schematic representation...Ch. 15 - Prob. 28RQCh. 15 - Draw a reflex map that explains Anthonys vasovagal...Ch. 15 - Prob. 30RQCh. 15 - Prob. 31RQCh. 15 - Prob. 32RQCh. 15 - Prob. 33RQCh. 15 - Prob. 34RQCh. 15 - Prob. 35RQCh. 15 - Prob. 36RQCh. 15 - Prob. 37RQCh. 15 - Prob. 38RQCh. 15 - Prob. 39RQ
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- Which nerves of the body carry ANS fibers that innervate the SA and AV nodes of the heart? Which of the nerves you listed carry sympathetic fibers and which carry parasympathetic fibers? What is the effect of increased sympathetic impulses on heart rate? What about increased parasympathetic impulses?arrow_forwardWhich of the following rows describes the change in heart rate, blood flow to skin, and glucose storage that would be expected to occur immediately following stimulation of the parasympathetic nervous system? Select one: a. Heart Rate Blood Flow to Skin Glucose Storage Increased Increased Decreased b. Heart Rate Blood Flow to Skin Glucose Storage Decreased Decreased Increased c. Heart Rate Blood Flow to Skin Glucose Storage Decreased Decreased Decreased d. Heart Rate Blood Flow to Skin Glucose Storage Increased Increased Increasedarrow_forwardWhat effect does sympathetic stimulation have on the heart?arrow_forward
- the herbal supplements bitter orange, also known as synephrine, mimics the effects of neurotransmitters on the SNS on the heart and blood vessels serving the abdominal viscera and skin. what effect do you think this would have on the blood pressure? Considering this, do you think this drug should be given to people with hypertension (high blood pressure)?arrow_forwardDescribe the functional differences in the effects of the sympathetic and parasympathetic divisions of the autonomic nervous system on the activity of the heart.arrow_forwardYou have to stand in front of the class to give a report. You are nervous, and your heart is pounding. What is the specific mechanism behind this reaction? What would your ECG look like?arrow_forward
- A motorcycle rider miscalculated a curve and met a horrible accident which resulted into major blood vessel injuries in the head and neck. Due to these injuries, one would expect to observe all of the following except which one among these? option 1.An increased heart rate option 2.An increase in cardiac output option 3.Increased secretion of renin by the kidneys option 4. An increased total peripheral resistancearrow_forwardDescribe the mechanism of action of intravenous injection of epinephrine or norepinephrine. What effect is expected on heart rate and blood pressure? How it affects blood vessels and circulation?arrow_forwardLeaky Na+ channels in the cells of the SA Node do which of the following? a-allow a slow repolarization which causes the delay in the AV Node b-allow a slow depolarization which causes the atria to contract for a longer time and fill the ventricles more completely c-allow a slow repolarization which brings the membrane potential back to a resting state d-allow a slow depolarization that eventually reaches the threshold for voltage-gated Ca2+ channelsarrow_forward
- Fill in the blank: Parasympathetic nerve fibers that supply the heart make up part of the _______________________ nerve.arrow_forwardWhat happens to the pulse rate when activities demand more body movements? Explain. Give 2 systems that are directly affected whenever pulse rate increases? Why?arrow_forwardThe following medications are used to treat an exacerbation of congestive heart failure. Each one of them is actually used to counteract mechanisms the body has naturally set in place in response to a drop in blood pressure and presumed drop in tissue perfusion. For each medication, explain its affect(s) on A, B, and C. If you feel it has no effect on a particular parameter, then say "no effect". Specifically for each: A) affect on TPR (total peripheral resistance) and how/why it changes it B) affect on cardiac output (contractility, heart rate, stroke volume) and how/why it changes it C) blood volume/pressure and how/why it changes it ACEIs (ACE inhibitors) Beta blockers Digoxin Nitrates (nitroglycerin, isosorbide) Diuretics like Lasixarrow_forward
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