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20 Cards in this Set
- Front
- Back
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Aorta
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This is the largest blood vessel in the body.
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Veins
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Large blood vessels that carry blood from the heart; not under pressure like arteries.
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Red Blood Cells
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Round, disk-shaped cells; carry oxygen to body cells; produced in red bone marrow of ribs, humerus, femur, sternum, & other long bones; 44% total volume; remain active for 120 days and then destroyed in spleen and liver. (Erythrocytes).
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Blood Pressure
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Force that blood exerts on blood vessels; rises and falls with each heart beat.
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Heart
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Large organ made of cardiac muscle cells rich in energy-producing mitochondria.
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Platelets
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Small cell fragments; help blood clot after injury; only live about 8-10 days. (Thrombocytes).
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White Blood Cells
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Protect body from leukocytes and microscopic organisms that cause disease; 1% of blood volume; make 1 billion/day. (Leukocytes).
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Arteries
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Large, thick-walled, muscular, elastic blood vessels that carry blood away from the heart; blood surges through arteries in pulses that correspond with rhythm of heartbeat.
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Capillaries
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Microscopic blood vessels with walls that are only one cell thick; RBCs move through in single file; form dense network/web.
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Blood
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Tissue composed of fluid, cells, and fragments of cells; types: A, B, AB, O.
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Pacemaker
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Bundle of nerve cells at top of RA that sets heart rate; generates electrical signals.
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Pulse
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Surge of blood through artery (easily felt in radial and carotid).
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Plasma
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Fluid portion of blood; straw-colored; 55% total volume of blood.
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Diaphragm
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Sheet of muscles that lies across the bottom of the chest cavity which helps pump carbon dioxide out of the lungs and pull oxygen into the lungs.
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Trachea
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Windpipe; passageway that travels to bronchi.
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Alveoli
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Sacs where oxygen and carbon dioxide are exchanged by diffusion between air and blood.
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Krebs Cycle
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Aerobic; forms ATP and carbon dioxide.
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Glycolysis
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Anaerobic; breaks down glucose into pyruvic acid.
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ETC
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Aerobic; proteins in chain pass electrons to oxygen which makes water.
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Cellular Respiration
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Complex process in which mitochondria break down food molecules to make ATP.
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