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veins tiny elastic walls and have valves. Return blood to the heart
capillaries Tiny thin walls diffusion
arteries Carry oxygenated blood except for pulmonary arteries
pericardium ) A double membranous sac which envelops and protects the heart. The layer in contact with the heart is referred to as the visceral layer, the outer layer in contact with surrounding organs is the parietal pericardium.
oxygenated oxygen rich blood
deoxygenated oxygen poor blood
agglutination a reaction in which particles (as red blood cells or bacteria) suspended in a liquid collect into clumps and which occurs especially as a serological response to a specific antibody
ventricles a hollow part or cavity in an organ, in particular.
atria largest artery of the body
septum Separates the blood
Valves a device that opens or closes to let things through or to prevent passage
anutibodies Y shaped proteins molecule made by lymphocyte B cell in the bone marrow that binds to the antigen and disable it.
pulse High and low pressure that can be felt in the Arteries when left ventricle contracts relaxes
plasma Liquid part of the blood
platelets Help clot the blood
white blood cells Protects the body
red blood cells Disk shape structures (cells) that carry oxygen
vaccine substitute, treated to act as an antigen without inducing the disease.
immunity the condition that permits either natural or acquired resistance to disease.
cancer the disease caused by an uncontrolled division of abnormal cells in a part of the body.
Created by: Lavay