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Blood, Circulatory System, Respiratory System
Human Biology 4th test flashcards
15
Biology
Undergraduate 3
10/19/2011

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Term
Transportation (blood function)
Definition
O2, CO2, hormones, blood products & WBC’s, antigens,and waste
Term
Regulation (blood function)
Definition
temperature, pH
Term
Platelets
Definition
(thrombocytes) Fragments of large precursor cells, Megakaryocytes, that break up
Term
RBC
Definition
(Erythrocytes) Bi-concave shape, maximizes surface area/volume ratio
Anucleate, no mitochondria,flexible, durable
Packed full of hemoglobin
Term
diastolic
Definition
when the ventricles fill with blood
Term
Stem cells
Definition
undifferentiated cells in red bone marrow (heads of long bones, and in flat bones of adults; in long bones of children)
Term
Protection (blood function)
Definition
invaders, repair- blood clotting
Term
5 Types of Leukocytes (WBC’s)
Definition
Neutrophils
Eosinophils
Basophils
Monocytes
Lymphocytes
Term
systolic
Definition
when the ventricles are emptied and valves close to keep blood
Term
Lymphocytes
Definition
B-Lymphocytes (B-cells) made in bones
T-Lymphocytes (T-cells) made in Thymus
Term
Antigen
Definition
“invader”
“germ”
Bacterium
Term
Anti-bodies
Definition
Made by
B-cells
Term
Hemoglobin
Definition
4 part protein
Each made of a heme group
Term
WBC
Definition
(leukocytes) remove wastes, toxins, damaged cells, invaders (phagocytosis); increase when needed (WBC count informs of infection) 5 types
Term
Plasma
Definition
is the liquid portion of blood. 55% of blood by volume ~92-93% of plasma is water, ~7-8% is dissolved substances.
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