Anatomy & Physiology: An Integrative Approach
2nd Edition
ISBN: 9780078024283
Author: Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 20, Problem 3CAL
Summary Introduction
Introduction:
Baroreceptor stimulates the vasomotor center to increase the signal along the sympathetic pathway that extends to a blood vessel (vasoconstriction). This results in an increase the blood flow through the blood vessels.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Why is it necessary to stimulate papillary muscles in the ventricle slightly earlier than the rest of the ventricular wall myocardium?
a. to assure rapid conduction speed of the action potential
b. to pull on AV valve cusps to prevent backflow
c. to assure blood will surge toward the semilunar valves
d. to assure coordinated contraction of the ventricular myocardium
Mr. Rogers is admitted into the Emergency room. When asked about his symptoms, Mr. Rogers claims that he feels pain whenever he touches his left forearm. The patient has no lesion, no history with injury to his forearm, and does not have a sunburn. His blood pressure and cholesterol levels are normal and overall Mr Rogers seems like a healthy man. What is Mr. Rogers suffering from?
A.
Referred pain from a myocardial infarction
B.
Diffuse pain from activation of Aδ and C fibers
C.
Allodynia
D.
Hyperalgesia
E.
“Wind up”, a pain-induced persistent increases in excitability and synaptic transmission in the ventral horn
F.
Habituation
At point A, note that mean arterial blood pressure (MABP) is slightly lowered despite the large fall in cardiac output (CO).
a. Why is CO decreased in response to hemorrhage?
b. How is blood pressure maintained so well despite the fall in CO?
c. What are the afferent receptors (sensors) responsible for this relatively well-maintained blood pressure at point A?
d. What changes in stimuli for these receptors may be contributing to the response at point A?
e. What efferent mechanisms mediate the increase in total peripheral resistance (TPR)?
Chapter 20 Solutions
Anatomy & Physiology: An Integrative Approach
Ch. 20.1 - What are three differences in anatomic structure...Ch. 20.1 - Prob. 2WDYLCh. 20.1 - What type of capillary is the most permeable, and...Ch. 20.1 - How does a vein serve as a blood reservoir?Ch. 20.1 - Prob. 5WDYLCh. 20.2 - In which type of vessel is blood flow the slowest?...Ch. 20.3 - What substances are transported by diffusion...Ch. 20.3 - Prob. 8WDYLCh. 20.3 - How does the hydrostatic pressure change from the...Ch. 20.3 - Which two pressures have the largest values?...
Ch. 20.3 - If these lymph vessels were nonfunctional, what...Ch. 20.4 - In what ways is angiogenesis stimulated in...Ch. 20.4 - Prob. 13WDYLCh. 20.4 - What relationship exists between metabolic...Ch. 20.4 - Prob. 15WDYLCh. 20.5 - Prob. 16WDYLCh. 20.5 - Prob. 17WDYLCh. 20.5 - How is the small pressure gradient in veins...Ch. 20.5 - How is the pressure gradient to move blood through...Ch. 20.5 - How is resistance defined?Ch. 20.5 - What are the three factors that alter resistance?...Ch. 20.5 - Prob. 22WDYLCh. 20.6 - Prob. 23WDYLCh. 20.6 - What is the initial change to blood pressure when...Ch. 20.6 - Prob. 25WDYLCh. 20.6 - Prob. 26WDYLCh. 20.7 - Which organs have an increased proportion of...Ch. 20.8 - Prob. 28WDYLCh. 20.8 - Prob. 29WDYLCh. 20.9 - Prob. 30WDYLCh. 20.9 - Prob. 31WDYLCh. 20.10 - Prob. 32WDYLCh. 20.10 - Prob. 33WDYLCh. 20.10 - Prob. 34WDYLCh. 20.10 - What are the systemic arteries that supply...Ch. 20.10 - Prob. 36WDYLCh. 20.10 - Prob. 37WDYLCh. 20.10 - Prob. 38WDYLCh. 20.11 - Prob. 39WDYLCh. 20.11 - Prob. 40WDYLCh. 20.11 - Prob. 41WDYLCh. 20.11 - Prob. 42WDYLCh. 20.12 - List the five structures of fetal circulation, and...Ch. 20.12 - Prob. 44WDYLCh. 20 - _____ 1. Which of the following is not a...Ch. 20 - _____ 2. Which statement is accurate about veins?...Ch. 20 - _____ 3. Vasa vasorum are found in the tunica...Ch. 20 - _____ 4. Which of the following decreases...Ch. 20 - _____ 5. The __________ is a type of vessel with...Ch. 20 - _____ 6. An increase in _____ will result in an...Ch. 20 - Prob. 7DYKBCh. 20 - _____ 8. Velocity of blood flow is the slowest in...Ch. 20 - _____ 9. Blood pressure is regulated by the a....Ch. 20 - _____ 10. Name the correct pathway that blood...Ch. 20 - Prob. 11DYKBCh. 20 - Prob. 12DYKBCh. 20 - Explain the difference between hydrostatic and...Ch. 20 - Write the formula for determining net filtration...Ch. 20 - Prob. 15DYKBCh. 20 - Prob. 16DYKBCh. 20 - Briefly explain how changes in cardiac output,...Ch. 20 - Compare how the cardiac center and vasomotor...Ch. 20 - Prob. 19DYKBCh. 20 - What postnatal changes occur in the heart and...Ch. 20 - If a patient has cirrhosis of the liver and is...Ch. 20 - Prob. 2CALCh. 20 - Prob. 3CALCh. 20 - Prob. 4CALCh. 20 - Prob. 5CALCh. 20 - Prob. 1CSLCh. 20 - Arteries tend to have a lot of vascular...Ch. 20 - Explain why an overweight individual with high...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Select the correct one, Which of the following would not increase Cardiac Output? A. increase blood epinephrine concentration B. Increase Atrial Preload C. Increase Cardiac sarcoplasmic calcium concentration D. Increase Arterial Afterloadaarrow_forwardFill in the following blanks (a - f) regarding the Baroreceptor Reflex Control: The baroreceptor reflex control is a negative feedback loop. If the patient is hypotensive, they are experiencing a decrease in blood pressure detected by (a.)_ located in the aortic and carotid bodies. The afferent pathways include the (b.)_ nerve and the (c.)__ nerve. These synapse at the cardioregulatory and vasomotor integration centers located in the (d.)_ These centers will cause the heart rate to (e.)(increase/decrease) and blood vessels to (f.) (vasodilate/vasocontrict). For the toolbar press ALT+510 (BC) or ALTHEN±+510/Madarrow_forwardwhich of the following indicates severe blood loss has occurred? A. normal , bounding pulse B. slow, strong pulse C. Rapid, thready pulse D. slow, bounding pulsearrow_forward
- During ventricular diastole, pressure in the ventricles falls to ____ mm Hg, while the pressure within the large arteries is about ____ mm Hg.A. 120, 80B. 80,120C. 80,0D. 0,80E. 40, 1204. Whereas (a) reflex is most important for regulating mean arterial pressure on a short-term basis; And (b) mechanism is most important for regulating mean arterial pressure on a long-term basis.(a)A. baroreceptor (b) chemoreceptorB. chemoreceptor (b) baroreceptor C. chemoreceptor(b) hormonal D. hormonal (b) baroreceptorE. baroreceptor (b) hormonalarrow_forwardCallisto has a flask of whiskey in her bag. She knows from experience that alcohol makes her flushed, it causes peripheral vasodilation, which makes her feel warmer. Considering that she is exposed to a cold environment, discuss the benefits or disadvantages of the fact that alcohol causes cutaneous vasodilation. Explain how this effect of alcohol affects her ability to maintain constant body temperature in a cold environment.arrow_forwardWhich of these statements about arteriovenous shunts in the skin is true?a. They divert blood to superficial capillary loops.b. They are closed when the ambient temperature is very low.c. They are closed when the deep-body temperature rises much above 37° C.d. All of these are true.arrow_forward
- Given: One night your body goes crazy and the amount of albumin in your blood doubles. a. What will this do to your blood pressure, and why? b. What are actions your body could take to reverse this change in blood pressure, and where would this take place? (Answer a and b)arrow_forwardWomen in the late nineteenth and early twentieth centuries wore whalebone corsets that severely restricted the respiratory and digestive systems. These corsets were worn to have a wasp-like waist. It was quite common for these women to faint—in fact, they had “fainting couches.” Explain the physiological reason for their fainting problems.arrow_forwardIn the image above, the dotted line represents a normal pacemaker potential. Describe the steps involved in a pacemaker potential. What would happen for the pacemaker potential to shift to A? B? A,arrow_forward
- The immediate objective of increased venous constriction in the baroreceptor reflex is to.... a. Increase EDV b. Get oxygenated blood to the right atrium c. Decrease MAP d. Limit SV so there is no more blood loss e. Promote the release of more epinephrine and norepinephrinearrow_forwardThe Esophageal artery is a: A. Branch of the ascending aorta B. Branch of the abdominal aorta C. Branch of the arch of the aorta D. Branch of the thoracic aortaarrow_forwardWhat will happen to the next level of exercise tolerance in a person whose heart is being paced by the AV node? A. Level of exercise tolerance will stay the same B. Level of exercise tolerance will decrease C. Level of exercise tolerance will increasearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
How stress affects your body - Sharon Horesh Bergquist; Author: TED-Ed;https://www.youtube.com/watch?v=v-t1Z5-oPtU;License: Standard Youtube License