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17 Cards in this Set
- Front
- Back
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Cardiovascular system |
A collection of organs that transport blood throughout the body; the organs in the system include the heart, the arteries, and the veins |
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White blood cell |
A type of cell in the blood that destroys bacteria, viruses, and toxic proteins and helps the body develop immunities |
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Artery |
A blood vessel that carries blood away from the heart to the body's organs |
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Capillary |
A tiny blood vessel that allows an exchange between blood and cells in tissue |
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Vein |
In biology, a vessel that carries blood to the heart |
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Plasma |
In biology, the liquid component of blood |
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Platelet |
A fragment of a cell that is needed to form blood clots |
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Red blood cells |
A disc-shaped cell that has no nucleus, that contains hemoglobin, and then transports oxygen in the circulatory system |
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Homeostasis |
The maintenance of a constant internal state in a changing environment; a constant internal state that is maintained in a changing environment by continually making adjustments to the internal and external environment |
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Negative feedback |
A change in one direction of a feedback mechanism that stops further change in that direction |
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Positive feedback |
In a system, the mechanism by which a cycle of events establishes conditions that favor repetition of the cycle |
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Pharynx |
In flatworms, the muscular tube that leads from the mouth to the gastrovascular cavity; in animals with a digestive tract, the passage from the mouth to the larynx and esophagus |
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Larynx |
The area of the throat that contains the vocal cords and produces vocal sounds |
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Trachea |
In organ that is like a tube that connects the larynx to the lungs in a respiratory system |
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Bronchus |
One of the two tubes that connect the lungs with the trachea |
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Alveolus |
Any of the tiny air sacs of the lungs where oxygen and carbon dioxide are exchanged |
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Diaphragm |
A dome-shaped muscle that is attached to the lower ribs and that functions as the main muscle in respiration |
