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Definition
| a circulatory system in which fluid called hemolymph bathes the tissues and organs directly and there is no distinction between the circulating fluid and the interstitial fluid |
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| Closed circulatory system |
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Definition
| a circulatory system in which blood is confined to vessels and is kept separate from the insterstitial fluid |
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Definition
| the fluid filling the spaces between cells in most animals |
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Definition
| a connective tissue with a fluid matrix called plasma in which red blood cells, white blood cells and cell fragments called platelets are suspended |
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Definition
| in invertebrates with an open circulatory system, the body fluid that bathes tissues |
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Definition
| a vessel that carries blood away from the heart to organs throughout the body |
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Definition
| a microscopic blood vessel that penetrates the tissues and consists of a single layer of endothelial cells that allows exchange between the blood and interstitial fluid |
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Definition
in animals, a veseel that carries blood toward the heart
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Definition
| a circulatory system consisting of a single pump and circuit, in which blood passes from the sites of gas exchange to the rest of the body before returning to the heart |
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Definition
| a circulatory system consisting of separate pulmonary and systemic circuits, in which blood passes through the heart after completing each circuit |
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Definition
| the stage of the cardiac cycle in which a heart chamber contracts and pumps blood |
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Definition
| the stage of the cardiac cycle in which a heart chamber is relaxed and fills with blood |
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Definition
| a region in the right atrium of the heart that sets the rate and timing at which all cardiac muslce cells contract; the pacemaker |
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Definition
| the liquid matrix of blood in which the blood cells are suspended |
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Term
| Low-density lipoprotein (LDL) |
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Definition
a particle in the blood made up of thousands of cholesterol molecules and other lipids bound to a protein
LDL transports cholesterol from the liver for incorporation into cell membranes |
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Term
| High-density lipoprotein (HDL) |
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Definition
| scavenges excess cholesterol |
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Term
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Definition
| a cardiovascular disease in which fatty deposits called plaques develop in the inner walls of the arteries, ostructing the arteries and causing them to harden |
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Definition
| the damage or death of cardiovascular muslce tissue resulting from prolonged blockage of one or more coronary arteries |
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Definition
| the death of nervous tissue in the brain, usually resulting from rupture or blockage of arteries in the head |
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