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Circulation and Gas Exchange
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32
Biology
Undergraduate 1
03/16/2011

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Term
itracellular fluid
Definition
fluid inside cells
Term
intercellular fluid
Definition
fluid between cells
Term
plasma
Definition
blood with all cellular elements removed. is straw colored and is isotonic with a 0.85% NaCl solution
Term
albumin
Definition
most abundant plasma protein. functions in the osmotic balance of blood.
Term
globulins
Definition
another abundant protein. functions in immune response and transports hormones and lipids.
Term
fibrinogen
Definition
helps form blood clots
Term
serum
Definition
plasma without fibrinogen
Term
physiological saline
Definition
0.85% solution of NaCl that is isotonic to red blood cells.
Term
erythrocytes
Definition
red blood cells. carry oxygen and carbon dioxide in hemoglobin
Term
hematocrit
Definition
volume of blood that is red blood cells. 48% male and 38% female
Term
anemia
Definition
low hemoglobin count. normal is 15g/dL in men and 13g/dL in women
Term
anemia
Definition
low hemoglobin count. normal is 15g/dL in men and 13g/dL in women
Term
leukocytes
Definition
white blood cells
Term
agranulocytes
Definition
lymphocytes and monocytes
Term
lymphocytes
Definition
t-cells and b-cells
Term
monocytes
Definition
phagocytic cells. non-specific. macrophage
Term
granulocytes
Definition
neutrophils, eosinophiles, and basophiles. helps with poison detox, allergic response, and removes unwanted clots.
Term
platelets
Definition
used in clotting. fibrin plugs the wound.
Term
platelets
Definition
used in clotting. fibrin plugs the wound.
Term
gastrovascular cavity
Definition
serves as a gut and circulates to remove wastes
Term
coelom
Definition
space between the guy and outer body wall
Term
hydrostatic skeleton
Definition
fluid-filled coelom
Term
open circulatory system
Definition
blood leaves vessels and flows over organs and is then collected and returned to the vessels.
Term
closed circulatory system
Definition
blood normally never leaves the vessels
Term
pulmonary circulation
Definition
unoxygenated blood is pumped to the lungs then back to the heart.
Term
systemic circulation
Definition
conduct oxygenated blood to the body then unoxygenated blood back to the heart.
Term
systole
Definition
ventricles are contracted
Term
diastole
Definition
ventricles are relaxed
Term
cardiac output
Definition
volume of blood pumped by one ventricle in one minute
Term
stroke volume
Definition
volume of blood pumped by one ventricle in one beat
Term
complete heart block
Definition
condition in which the AV node is non functional and no impulses from the SA node reach the ventricles. Heart still contracts but at 20-40 beats per minute.
Term
intrinsic control of the heart
Definition
control of heartbeat by SA and AV nodes
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