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Animal Physiology: 1

A deck of flashcards for Undergraduate Study of Biology.

QuestionAnswer
What is the main propulsive organ? The heart.
Function of the Arterial system To distribute oxygenated blood (except for the pulmonary artery) and regulate pressure.
Function of the Capillaries Capillaries are very thin blood vessels. They bring nutrients and oxygen from the heart to tissues and remove waste.
Function of the Venous system The part of the circulation in which the blood is transported from the periphery back to the heart.
4 types of movement of blood through the body Rhythmic contractions of the heart (v), elastic recoil of arteries following filling by the heart (v), squeezing of b. vessels in body movements (anthropods) & peristaltic contractions of smooth muscle surrounding blood vessel (earthworms).
Functions of the Valves Controls direction of blood flow, where when pressure is greater behind the valve, it opens and when the pressure is greater in front, it does not open. They are one-way valves.
Functions of smooth muscle Controls diameter of peripheral vessels, thereby alternating resistance and flow to different tissues.
Created by: theecloud