Cardiovascular System Flashcards
Cardiovascular
relating to the heart and blood vessels.
Blood
the red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body.
Vessels
a duct or canal holding or conveying blood or other fluid.
Heart
a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation. In vertebrates there may be up to four chambers (as in humans), with two atria and two ventricles.
deoxygenated
remove oxygen from.
Oxygenated
supplied, treated, or enriched with oxygen.
centrifuge
a machine with a rapidly rotating container that applies centrifugal force to its contents, typically to separate fluids of different densities (e.g. cream from milk) or liquids from solids.
Macrophages
a large phagocytic cell found in stationary form in the tissues or as a mobile white blood cell, especially at sites of infection.
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lymphocytes
a form of small leucocyte (white blood cell) with a single round nucleus, occurring especially in the lymphatic system.
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plasma
the colourless fluid part of blood, lymph, or milk, in which corpuscles or fat globules are suspended.
platelets
a small colourless disc-shaped cell fragment without a nucleus, found in large numbers in blood and involved in clotting.
Artery
any of the muscular-walled tubes forming part of the circulation system by which blood (mainly that which has been oxygenated) is conveyed from the heart to all parts of the body.
vein
any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood towards the heart.
capillary
any of the fine branching blood vessels that form a network between the arterioles and venules.
valve
a membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, which maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow.