HHS Circulatory System Quiz 2
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33 Terms
Blood Pressure
the force of blood circulating against artery walls
Systolic Blood Pressure
pressure inside the arteries when the heart BEATS (top number)
Diastolic Blood Pressure
pressure inside the arteries when the heart RESTS between beats (bottom number)
Hypertension
abnormally high blood pressure (140/90 mmHg)
Hypotension
abnormally low blood pressure (90/60 mmHg)
Normal Blood Pressure
120/80 mmHg
4 Components of Blood
Red Blood Cells, White Blood Cells, Plasma, Platelets
Name of Red Blood Cells
Erythrocytes
Name of White Blood Cells
Leukocytes
Name of Platelets
Thrombocytes
Red Blood Cells Function
contains the protein hemoglobin that allows it to bind & carry oxygen throughout the body
White Blood Cells Function
larger cells that fight off bacteria, viruses, foreign bodies, & any other antigen
Platelet Function
clots blood to prevent blood loss
Plasma Function
carries dissolved nutrients such as salts, proteins, hormones & allows blood to move freely
Percentage of Red Blood Cells
45% (densest component)
Percentage of White Blood Cells
just under 1%
Percentage of Platelets
just under 1%
Percentage of Plasma
55% the liquid component of blood
rh Factor
protein that makes blood positive (+) or negative (-)
Blood Antigen
a protein present on the surface of red blood cells that determines a person’s blood type
trigger immune response
Blood Antibody
a protein present in blood plasma that codes for another blood types antigen
produced by immune system
Antibody in Type A Blood
B Antibody
Antibody in Type B Blood
A Antibody
Antibody in Type AB Blood
No antibodies
Antibody in Type O Blood
Both A & B Antibodies
Antigens in Type AB blood
both A & B antigens
Antigens in Type O Blood
no antigens
Antigens in Type A Blood
A Antigens
Antigens in Type B Blood
B Antigens
Universal Blood Donor
O-
Universal Acceptor
AB+
Hemoglobin
iron based complex protein in red blood cells that binds to oxygen molecules
Fibrin
protein that forms the basis of a blood clot
Works with platelets to clot blood