Blood and Hematopoiesis Flashcards
What is BRU-E?
burst-forming unit, erythroid
precursor
What is whole blood and what are its functions?
specialized connective tissue
transport water, solutes and formed elements
temperature regulation
water balance
What is whole blood comprised of?
60% plasma
40% formed elements
What is plasma made up of?
90% water
8& proteins
2% other solutes
What are the two plasma proteins?
albumin and globulins
What are plasma electrolytes?
sodium, chloride and potassium
Whats the difference between plasma and serum?
- plasma found in vasculture, serum in coagulation proteins
- plasma blood does not clot in seperaters, serum is allowed
What are formed elements?
erythrocytes, leukocytes and platelets
T or F: CBC varies in numbers and morphology in relation to disease processes in patients
True
What is the most numerous formed element in the blood?
RBC
T or F: RBC size varies in species?
True
How many days does a RBC survive in a dog?
110 days
How many days does a RBC survive in a horse?
160 days
How many days does a RBC survive in a feline?
70 days
How many days does a RBC survive in a bovine?
145 days
What shape are goat RBC?
spherical and irregular
What shape are camel RBC?
flat, thin
T or F: birds have nucleated RBCS, WBC and thrombocytes?
True
What are polychromatophils?
RBC’s that are 1 stage back in development
larger than mature RBC, smaller than neutrophil
lavender to purple color
T or F: finding a nucleated RBC is abnormal?
True
diseases affecting RBC formation
What is the least numerous formed element in the blood?
leukocytes
What is the function of leukocytes?
inflammation and immune response
What are the two major categories of leukocytes?
myeloid (neutrophils, basophils, etc.)
lymphoid ( lymphocytes)
What are the most numerous WBC’s?
neutrophils
What is the function of neutrophils?
innate immunity
phagocytic and killing cells
How can you identify hetrophils on a slide?
dynamic, dense granules
What is a band neutrophil?
rare bands found in blood smears
one stage less mature than segmented neutrophil
T or F: monocytes differentiate in macrophages in tissue?
True
What are the functions of monocytes?
phagocytosis
iron storage and recycling
antigen presentation to T-lymphocytes
What is the mononuclear phagocytic system comprised of?
circulating monocytes
tissue macrophages
T or F: monocytes vary in morphology?
True
T or FL monocytes are the largest cells on blood smears typically?
True
T or F: Monocyte cytoplasms are frequently vacuolated ?
True
T or F: it is normal to have low numbers of eosinophils in blood?
True
What is the function of eosinophils?
modulate delayed and immediate type hypersensitivity reactions commonly associated with mast cells
T or F: eosinophils defend against helminthic parasites?
True
What does an eosinophil look like on morphology?
bright reddish-orange
eosinophillic granules
purple nucleus
What is the least numerous WBC in blood?
basophils
T or F: Heartworm disease is associated with basophils?
True
What is the morphology of a basophil?
lavender granules
What is the second most numerous cell population in the blood?
lymphocytes
What is the function of lymphocytes?
humoral immunity: b-cells and plasma cells
cell mediated immunity: T cells
What are subpopulations of lymphocytes?
small
large granular
reactive
plasma cells
T or F: large granular lymphocytes are found in low numbers in sick animals?
False, HEALTHY animals
What is the second most numerous formed element in the blood?
platelets
thrombocytes
What are the functions of platelets?
clotting
primary inflammatory response
What are the two types of bone marrow?
red marrow and yellow marrow
What are the components of bone marrow?
sinusoids
stromal cells
stem cells and precursor cells
macrophages
What is stoma of bone marrow?
connective tissue framework
composed of reticular cells& fibers and mesenchymal cells
support structure of bone marrow
What are the cells of bone marrow?
hematopoietic stem cells
What is hematopoiesis?
process of formed elements
What is the process of RBC formation?
Rubriblast Prorubicyte Rubricyte Metarubricyte Polychromatophllic RBC Mature RBC
What is the process of neutrophil formation?
Myeloblast Promyelocyte Myelocyte Metamyelocyte Band neutrophil Segmented neutrophil