Anatomy and Physiology
9th Edition
ISBN: 9781260256000
Author: SALADIN
Publisher: MCG
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Chapter 18.5, Problem 24BYGO
Summary Introduction
Introduction:
Hemostasis is defined as the process of stopping of bleeding. There are hemostatic mechanisms within the body designed to prevent blood loss, which, if continued unchecked, may lead to death.
Blood coagulation is regulated by both a positive feedback mechanism that quickly increases the rate of clot formation and by a negative control mechanism that quickly decreases the rate of clot formation.
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The diagram in Figure 5 shows the difference between negative feedback and positive feedback.
(i)Explain why negative feedback is important in homeostasis. (ii)Explain how negative feedback enables the carotid and aortic bodies and the medulla to maintain a constant blood carbon dioxide level. (iii)It is said that the initiation of an Action Potential is an example of positive feedback. With reference to the process involved, state why you think this statement is accurate?
What is the difference between circulatory and endocrine system?
An example of feedback is seen in blood clotting. Part of the complex biochemical pathway of clotting is the production of an enzyme that forms the
matrix of the blood clot, but also speeds up the production of still more thrombin. That is, it has a self-catalytic, self-accelerating effect, so that once the
clotting process begins, it runs faster and faster until, ideally, bleeding stops. Thus, this positive feedback loop is part of a larger negative feedback loop,
one that is activated by bleeding and ultimately works to stop the bleeding.
So ultimately in keeping homeostasis, which of the following is true:
This is a positive feedback loop
This is a negative feedback loop
Chapter 18 Solutions
Anatomy and Physiology
Ch. 18.1 - Identify at least two each of the transport,...Ch. 18.1 - Prob. 2BYGOCh. 18.1 - List the three major classes of plasma proteins....Ch. 18.1 - Prob. 4BYGOCh. 18.1 - Prob. 5BYGOCh. 18.1 - Prob. 1AYLOCh. 18.1 - Prob. 2AYLOCh. 18.1 - Prob. 3AYLOCh. 18.1 - Prob. 4AYLOCh. 18.1 - Prob. 5AYLO
Ch. 18.1 - Prob. 6AYLOCh. 18.1 - Prob. 7AYLOCh. 18.2 - Describe the size, shapte, and contents of an...Ch. 18.2 - Prob. 7BYGOCh. 18.2 - Prob. 8BYGOCh. 18.2 - Prob. 9BYGOCh. 18.2 - Prob. 10BYGOCh. 18.2 - Prob. 11BYGOCh. 18.2 - Prob. 12BYGOCh. 18.2 - Prob. 1AYLOCh. 18.2 - Prob. 2AYLOCh. 18.2 - Prob. 3AYLOCh. 18.2 - Three ways of quantifying the RBCs and hemoglobin...Ch. 18.2 - Prob. 5AYLOCh. 18.2 - Prob. 6AYLOCh. 18.2 - Prob. 7AYLOCh. 18.2 - Prob. 8AYLOCh. 18.2 - Prob. 9AYLOCh. 18.2 - Prob. 10AYLOCh. 18.2 - Causes and effects of hemoglobin deficiencies and...Ch. 18.3 - Prob. 13BYGOCh. 18.3 - Prob. 14BYGOCh. 18.3 - Prob. 15BYGOCh. 18.3 - Prob. 16BYGOCh. 18.3 - Prob. 1AYLOCh. 18.3 - Prob. 2AYLOCh. 18.3 - Prob. 3AYLOCh. 18.3 - Prob. 4AYLOCh. 18.3 - Prob. 5AYLOCh. 18.3 - Prob. 6AYLOCh. 18.3 - Hemolytic disease of the newborn; why it seldom...Ch. 18.4 - Prob. 17BYGOCh. 18.4 - Prob. 18BYGOCh. 18.4 - Prob. 19BYGOCh. 18.4 - Prob. 20BYGOCh. 18.4 - Prob. 21BYGOCh. 18.4 - Prob. 1AYLOCh. 18.4 - Prob. 2AYLOCh. 18.4 - Prob. 3AYLOCh. 18.4 - Prob. 4AYLOCh. 18.4 - Prob. 5AYLOCh. 18.4 - Prob. 6AYLOCh. 18.4 - Prob. 7AYLOCh. 18.5 - Prob. 22BYGOCh. 18.5 - Prob. 23BYGOCh. 18.5 - Prob. 24BYGOCh. 18.5 - Prob. 25BYGOCh. 18.5 - Prob. 26BYGOCh. 18.5 - Prob. 1AYLOCh. 18.5 - Prob. 2AYLOCh. 18.5 - Prob. 3AYLOCh. 18.5 - Prob. 4AYLOCh. 18.5 - Prob. 5AYLOCh. 18.5 - Prob. 6AYLOCh. 18.5 - Prob. 7AYLOCh. 18.5 - Prob. 8AYLOCh. 18.5 - Prob. 9AYLOCh. 18.5 - Prob. 10AYLOCh. 18.5 - Prob. 11AYLOCh. 18.5 - Terms for unwanted or inappropriate clotting in a...Ch. 18.5 - Prob. 13AYLOCh. 18 - Antibodies belong to a class of plasma proteins...Ch. 18 - Prob. 2TYRCh. 18 - Prob. 3TYRCh. 18 - Prob. 4TYRCh. 18 - Prob. 5TYRCh. 18 - Prob. 6TYRCh. 18 - Prob. 7TYRCh. 18 - Prob. 8TYRCh. 18 - Prob. 9TYRCh. 18 - Prob. 10TYRCh. 18 - Prob. 11TYRCh. 18 - Prob. 12TYRCh. 18 - Prob. 13TYRCh. 18 - Prob. 14TYRCh. 18 - Prob. 15TYRCh. 18 - Prob. 16TYRCh. 18 - Prob. 17TYRCh. 18 - Prob. 18TYRCh. 18 - Prob. 19TYRCh. 18 - Prob. 20TYRCh. 18 - Prob. 1BYMVCh. 18 - Prob. 2BYMVCh. 18 - Prob. 3BYMVCh. 18 - Prob. 4BYMVCh. 18 - Prob. 5BYMVCh. 18 - Prob. 6BYMVCh. 18 - Prob. 7BYMVCh. 18 - Prob. 8BYMVCh. 18 - Prob. 9BYMVCh. 18 - Prob. 10BYMVCh. 18 - Prob. 1WWTSCh. 18 - Prob. 2WWTSCh. 18 - Prob. 3WWTSCh. 18 - Prob. 4WWTSCh. 18 - Prob. 5WWTSCh. 18 - Prob. 6WWTSCh. 18 - Prob. 7WWTSCh. 18 - All formed elements of the blood except platelets...Ch. 18 - When RBCs die and break down, the globin moiety of...Ch. 18 - Prob. 10WWTSCh. 18 - Prob. 1TYCCh. 18 - Prob. 2TYCCh. 18 - Prob. 3TYCCh. 18 - Prob. 4TYCCh. 18 - Prob. 5TYC
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