Circulatory system

Lilian Vieyra
Flashcards by Lilian Vieyra, updated more than 1 year ago
Lilian Vieyra
Created by Lilian Vieyra almost 6 years ago


Biology Flashcards on Circulatory system, created by Lilian Vieyra on 06/10/2015.

Resource summary

Question Answer
Circulatory System Moving important cell substances
Consists Vessels: Network of tubes (veins, arteries and capillaries)
Heart pumping Drives blood, lymph and hemolymph
Vessels Diffusion of substances to & from the cells through them
Open The blood is pumped from the heart to the vessels and into tissues
Closed The blood doesn't come into direct contact with the tissues The blood never leaves the blood vessels
Double circulation Occurs only in vertebrates
Simple Circulation Occurs in organisms with CS Closed There is presence of an atrium & a ventricle
Functions of the Cardiovascular System ¬Transport of O2, nutrients & wastes ¬Intervention at the balance of acids & bases, salts & water ¬Regulation of body temperature ¬Take self defense system, clotting & healing ¬Transportation of chemical messengers
Cardiovascular System components Heart 2 atria 2 ventricles
Blood pressure Force per unit exerted by the blood in a blood vessel
Pulse It's a measurement of the heart rate (60-100 beats) Pulsation is caused by the expansion of arteries to circulate blood trhough the heart's contraction
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