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Blood
The constituency and functions of blood and blood cells
40
Anatomy
Undergraduate 2
11/05/2014

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Term
Blood
Definition
transports dissolved nutrients, gases, hormones and wastes through the body
Term
Hemopoiesis
Definition
process by which blood develops
Term
Plasma
Definition
60% of the blood's volume
Term
Plasma
Definition
90% water
Term
Plasma
Definition
straw-colored fluid
Term
Plasma
Definition
albumins, globulins and fibrinogen
Term
Albumins
Definition
maintain the blood's osmotic pressure
Term
Globulins
Definition
transports nutrients to cells in the immune system
Term
Fibrinogen
Definition
plasma protein precursor to important factor in blood clotting
Term
RBC's
Definition
most abundant cells in the blood (99% total cellular component)
Term
RBC's
Definition
biconcave disks
Term
Hemoglobin
Definition
iron-containing protein (red color of RBC's)
Term
Hemoglobin
Definition
1/3rd weight of RBC, carries 97% of the blood's oxygen
Term
RBC's
Definition
erythrocytes
Term
Red Bone Marrow
Definition
salvaged iron from dead RBC's return to here
Term
Red Bone Marrow
Definition
production site for RBC's, WBC's and Megakaryocytes
Term
Platelets
Definition
thrombocytes
Term
Platelets
Definition
crucial to blood clotting
Term
Hemostasis
Definition
sequence of responses that stops bleeding
Term
Thrombin
Definition
enzyme that catalyzes the conversion of fibrinogen into fibrin
Term
Fibrin
Definition
adhere to one another to create a sticky network to trap RBC's and other platelets, increasing density of clot
Term
Fibrin
Definition
eventually produces a "scab"
Term
Thrombosis
Definition
clotting in an unbroken blood vessel, could result in an embolism
Term
Hematocrit
Definition
% of total blood volume occupied by RBC's
Term
Erythropoiesis
Definition
the formation of just RBC's
Term
WBC's
Definition
Leukocytes
Term
WBC's
Definition
1% of total cellular component of blood
Term
WBC's
Definition
protects the body from viruses and bacteria
Term
Neutrophils
Definition
60-70% of WBC's are these
Term
Neutrophils
Definition
granulocyte; phagocytize bacteria
Term
Eosinophils
Definition
2-4% of WBC's are these
Term
Eosinophils
Definition
granulocyte; phagocytize parasitic infections, allergens and inflammatory diseases
Term
Basophils
Definition
0.5-1% of WBC's are these
Term
Basophils
Definition
granulocyte; large but hidden nucleus; secretes histamine (vasodilator)
Term
Lymphocytes
Definition
25-33% of WBC's are these
Term
Lymphocytes
Definition
agranulocyte; destroys foreign cells (incl. cancer); "secret antibodies" serve as our immune memory
Term
Monocytes
Definition
3-8% of WBC's are these
Term
Monocytes
Definition
largest of all blood cells; phagocytize pathogens and debris of dead cells
Term
Monocytes
Definition
macrophages; "suicide cells"
Term
Blood
Definition
transportation (o2, nutrients, etc), protection (against blood loss and disease) and regulation (ph, body temp. and water)
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