Anatomy Final
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38 terms
Terms | Definitions |
|---|---|
 pericardium | sac around heart |
| atrioventricular valves | valves connecting atrium and ventricle |
| chordae tendinae | anchors valves in ventricle |
| papillary muscles | anchors cords |
| vasoconstriction | arteries' ability to close off |
| vasodialation | arteries' ability to expand |
| venules | between veins and capillaries |
| arterioles | between arteries and capillaries |
| ductus arteriosus | a way to bypass lungs (fetal) |
| forman ovale | bypasses the lungs (fetal) |
| ductus venosus | takes blood from umbilical vein to heart |
| brachial | artery where BP is measured |
| blood pressure | force exerted against arteries |
| systolic pressure | maximum pressure during ventricular contraction |
| diastolic pressure | minimum pressure during ventricular relaxation |
| red blood cells | composes 45% of blood |
| white blood cells, platelets | composes >1% of blood (two terms) |
| plasma | composes 55% of blood |
| leukocytes | another name for white blood cells |
| white blood cells | contains T and B cells |
| red blood cells | component of blood made in bone marrow |
| platelets | component of blood with clotting response |
| regulates body temperature | homeostatic function of blood |
| transports stuff (gasses, nutrients, waste, hormones, enzymes, etc.) | non-homeostatic function of blood |
| erthrocytes | another name for red blood cells |
| water, solutes | two components of plasma |
| antigen | something that triggers immuno response |
| antibodies | proteins targeted for a specific antigen |
| type O | universal donor |
| type AB | universal receiver |
| pulse | alternating contracting and relaxing of heart |
| hypotension | low blood pressure |
| hypertension | high blood pressure |
| sphygmomanometer | device that measures blood pressure (spelling counts!) |
| negative feedback loop | body opposing detected change |
| homeostasis | balance, normal state |
| myocardium | middle layer of heart |
| liver | bypassed in fetal circulation |
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