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Histology
Blood
29
Histology
Professional
10/13/2011

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Cards

Term
What are the main components of blood by volume?
Definition
Red Blood Corpuscles/ Leucocytes 45% and Plasma 55%
Term
What is the normal number of RBCs in males?
Definition
5 million per cubic mm
Term
What is the normal number of RBCs in females?
Definition
4.5 million per cubic mm
Term
What is the red pigment in blood and what is its function?
Definition
Hemoglobin; carries oxygen and carbon dioxide
Term
What is the enzyme inside RBC's and its function?
Definition
Carbonic anhydrase; converts CO2 and water into bicarbonate for transfer
Term
What are the three proteins found in plasma?
Definition
albumin (colloid osmotic pressure), globulin (antibodies) and fibrinogen (blood coagulation)
Term
What is an increase in the number of RBCs called?
Definition
polycythemia
Term
What is the decrease in size of RBCs called?
Definition
microcytic anemia
Term
What is the increased size of RBCs?
Definition
pernicious anemia (low vitamin B12)
Term
What is Rouleaux formation?
Definition
where RBCs stick together and temporarily stack up to pass through capillary
Term
What is the normal number of leukocytes?
Definition
5,000 - 11,000 per cubic mm
Term
What are the different types of leukocytes?
Definition
Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils
Term
What is the percentage of Neutrophils of total leukocyte count?
Definition
60-70%
Term
What is the percentage of Lymphocytes of total leukocytes?
Definition
20-30%
Term
What is the percentage of Monocytes of the total leukocytes?
Definition
2-6%
Term
What is the percentage of Eosnophils in total leukocytes?
Definition
2-4%
Term
What is the percentage of Basophils of the total leukocyte count?
Definition
0.5-1%
Term
What is an increase in number of leukocytes?
Definition
leukocytosis
Term
What is a reduction in the number of leukocytes?
Definition
leukemia
Term
What are the two main histological differences between the 3 types of granular leukocytes?
Definition
Nucleus and size
Term
What is the function of neutrophils?
Definition
(polymorphs) phagocytosis
Term
What is the function of eosinophils?
Definition
Phagocytose antigen-antibody complex that form during allergic reactions, and histaminase
Term
What is the function of basophils?
Definition
secrete histamine, and heparin
Term
What is the function of lymphocytes?
Definition
cell mediated immunity, humoral immunity
Term
What is the function of monocytes?
Definition
phagocytosis
Term
Which of the leukocytes has a function similar to mast cells?
Definition
basophils
Term
Which is the largest leukocyte?
Definition
Monocyte
Term
What is the normal number of blood platelets and their function?
Definition
150,000 - 300,000 per cubic mm; blood clotting
Term
What is the mother cell of blood platelets?
Definition
megakaryocytes
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