HUMAN ANAT.+PHYSIO.(LL)-W/MASTER.+LAB
19th Edition
ISBN: 9780135193952
Author: Marieb
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 19, Problem 5RQ
Summary Introduction
Introduction:
Blood vessels inside the living organisms are responsible for making a delivery system inside the body of an organism. Three major type of blood vessels present in the body are the arteries, the capillaries, and the veins. The arteriolar system carries the blood away from the heart and the veins carry blood toward the heart inside the body. The contraction and relaxation of the blood vessels result in the increased or decreased amount of surface area of the blood vessels.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Compared with the interstitial fluid that bathes active musclecells, blood reaching these cells in arterioles has a(A) higher PO2.(B) higher PCO2.(C) greater bicarbonate concentration.(D) lower pH.
Select the best answer or answers from the choices given: Which of the following would not result in the dilation of the feeder arterioles and opening of the precapillary sphincters in systemic capillary beds? (a) a decrease in local tissue O2 content, (b) an increase in local tissue CO2, (c) a local increase in histamine, (d) a local increase in pH.
(a) Define hemostasis. (b) List the three major phases of coagulation. Explain what initiates each phase and what the phase accomplishes. (c) In what general way do the intrinsic and extrinsic mechanisms of clotting differ? (d) Which ion is essential to virtually all stages of coagulation?
Chapter 19 Solutions
HUMAN ANAT.+PHYSIO.(LL)-W/MASTER.+LAB
Ch. 19 - Prob. 1RQCh. 19 - 3. Peripheral resistance (a) is inversely...Ch. 19 - 4. Which of the following can lead to decreased...Ch. 19 - 5. Arterial blood pressure increases in response...Ch. 19 - Prob. 5RQCh. 19 - 7. The structure of a capillary wall differs from...Ch. 19 - Prob. 7RQCh. 19 - 9. The myocardium receives its blood supply...Ch. 19 - 10. Blood flow in the capillaries is steady...Ch. 19 - Prob. 10RQ
Ch. 19 - Prob. 12RQCh. 19 - Prob. 11RQCh. 19 - Prob. 13RQCh. 19 - Prob. 19RQCh. 19 - 17. Write an equation showing the relationship...Ch. 19 - Prob. 17RQCh. 19 - Prob. 14RQCh. 19 - Prob. 15RQCh. 19 - Prob. 21RQCh. 19 - Prob. 22RQCh. 19 - 22. Describe neural and chemical (both systemic...Ch. 19 - How are nutrients, wastes, and respiratory gases...Ch. 19 - Prob. 18RQCh. 19 - Prob. 24RQCh. 19 - 2. Your friend Jillian, who knows little about...Ch. 19 - 3. The Agawam High School band is playing some...Ch. 19 - 4. When we are cold or the external temperature is...Ch. 19 - 5. Edema is a common clinical problem. On your...Ch. 19 - Prob. 1CCSCh. 19 - Prob. 2CCSCh. 19 - Prob. 3CCSCh. 19 - Prob. 4CCSCh. 19 - Prob. 5CCSCh. 19 - Prob. 6CCS
Knowledge Booster
Similar questions
- Compared with the interstitial fluid that bathes active muscle cells, blood reaching these cells in arteries has a(A) lower osmotic pressure.(B) higher PO2.(C) lower pH.(D) higher PCO2.(E) greater bicarbonate concentration.arrow_forwardMyogenic behavior of arterioles:A) depends upon the intrinsic response of vascular smooth muscle to changes in transmural pressure. B)is probably not important in autoregulation.C)permits vessel wall tension to increase in direct proportion to transmural pressure. D) Requires sympathetic innervationsE)is a transient response that diminishes within secondsarrow_forwardDeep vein thromboses (DVT) is characteristically activated by which of the following mechanisms? (A) intrinsic mechanism (B) extrinsic mechanismarrow_forward
- Which of the following statements concerning capillaries is TRUE? A) Capillaries are composed of a single layer of endothelial cells surrounded by a basement membrane B) Thoroughfare channels drain directly into venules C) Metarterioles branch directly off arterioles D) Both A & B All of the abovearrow_forward1.A patient comes into the ER who has just rapidly lost 30% of his bloodvolume. Which of the following would you predict?A)Baroreceptor afferent activity (firing rate) would be above normal.B)Blood pressure would be above normal.C)Plasma vasopressin would be above normal.D)Plasma angiotensin II would be below normal.E)Atrial "B" fiber activity (firing rate) would be above normal.arrow_forwardSuppose OP if rises dramatically—say because of a severe bacterial infection in the surrounding tissue. (a) Predict how fluid flow will change in this situation. (b) Now calculate the NFP at the venous end of the capillary. If OP if increases to 10 mm Hg. (c) In which direction does fluid flow at the venous end of the capillary now—in or out?* (see fig. and attached with snipped method if neccessary)arrow_forward
- Increased CO2 levels in tissues would promote, (a) contraction of precapillary sphincters. (b) an increase in the pH of the blood. (c) relaxation of precapillary sphincters. (d) a decrease of blood flow to tissues.arrow_forwardFastyarrow_forwardDehydration would, (a) cause an increase in the hematocrit. (b) cause a decrease in the hematocrit. (c) have no effect on the hematocrit. (d) cause an increase in plasma volume.arrow_forward
- Relaxation of precapillary sphincters: a) increases blood flow through ateriovenous shunt b) increases hydrostatic pressure at the arteriole end of the capillary c) reduces the quanityt of blood serving that body region d) is directly caused by the parasympathetic nervous systemarrow_forwardAnswer both questions, they follow each other 1a)Which of the following is a function of the smooth muscle layer of arterioles during the transition to exercise because of the binding of the hormone epinephrine to a beta-adrenergic receptor? Group of answer choices a)Increase MAP as a response in a negative feedback arc b)Increase the distribution of blood to skeletal muscles during exercise c)Increase TPR d)Increased cardiac output e)Decreased heart rate 1b) Which of the following is a mechanism largely responsible for distributing more blood to Jose's skeletal muscles? Group of answer choices a)Decreased sympathetic stimulation of arteriolar smooth muscles b)Increased parasympathetic stimulation of arteriolar smooth muscles c)Autoflow regulation d)Active hyperemiaarrow_forwardA 29-year-old female develops sepsis and, as a consequence, she experiences profound vasodilation. a) What effect does vasodilation have on the afterload? Explain why. b) What effect does vasodilation have on blood pressure? Explain why. How will her body try to bring her blood pressure back to homeostasis Be detailed in your explanation and support your answer with facts from your textbook, research, and articles from scholarly journals. In addition, remember to add references in APA format to your posts to avoid plagiarism.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning