HK 2810 Study Guide - Final Guide: Gamma-Hydroxybutyric Acid, Pseudoephedrine, Sodium Bicarbonate

• School: University of Guelph
• Department: Human Kinetics
• Course: HK 2810
• Professor: Kerry Ritchie

Document Summary

Human physiology final exam questions - fall 2007. Active ix which activates factor x to produce active x which converts prothrombin to thrombin. Thrombin converts fibrinogen to fibrin and also acts to activate factor xi. These all act to increase skin temperature which will be sensed by the temperature receptors which will decrease their action potential frequency and pattern to the hypothalamus. Discuss the physiological significance of this theme using 3 examples from different sections of the course to support your answer: body temperature is partly managed by influencing blood flow to the skin. The smooth muscle cells of arterioles of the vasculature to the skin are affected by hypothalamic connections via the sympathetic nervous system as well as paracrine agents, such as histamine, released from neighboring sweat glands. Both can cause vasodilation and an increase in blood flow to the skin when necessary. Identify the physiological theme represented in this example and justify your answer.