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Description
Flashcards by Lilian Vieyra, updated more than 1 year ago
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Created by Lilian Vieyra
almost 9 years ago
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| 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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