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Apologia A&P Mod. 11
Apologia A&P Vocab for Module 11
Term | Definition |
---|---|
Viscosity | The resistance to flow and alteration of shape due to cohesion |
Plasma | The fluid portion of the blood, which is mostly water |
Formed elements of blood | The cells and cell parts of blood produced by the bone marrow |
Erythrocytes | Red blood cells which carry the oxygen in the blood |
Leukocytes | White blood cells which perform various defensive functions in blood |
Platelets | Cell fragments in blood which help prevent blood loss |
Diapedesis | Passage of any formed element of blood through the blood vessel and into the tissue spaces |
Chemotaxis | Attraction of cells to chemical stimuli |
Hemopoiesis | The process by which the formed elements of blood are made in the body |
Hemostasis | The process by which the body stops blood loss |
Coagulation factors | Proteins in blood plasma which help initiate the blood coagulation process |
Antigen | A protein or carbohydrate that, when introduced in the blood, triggers the production of an antibody |
Arteries | Blood vessels that carry blood away from the heart |
Capillaries | Tiny, thin-walled blood vessels that allow the exchange of gases and nutrients between the blood and cells |
Veins | Blood vessels that carry blood back to the heart |
Pulmonary circulation | Circulation of the blood over the air sacs of the lungs |
Systemic circulation | Circulation of the blood through the other tissues of the body |
Systole phase | The phase of the cardiac cycle in which the ventricles contract |
Diastole phase | The phase of the cardiac cycle in which the ventricles relax |
Cardiac cycle | One complete round of systole and diastole |
Arterioles | The smallest arteries that still have three tunics |
Venules | Small veins that do not have three tunics but instead have only an endothelium, a basement membrane, and a few smooth muscle cells |