RBC test Exam #1|| 80 QUESTIONS & CORRECT ANSWERS|| VERIFIED
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Course
RBC
Institution
RBC
What is an erythrocyte? - ANSWER A red blood cell
What is erythropiesis? - ANSWER Making of RBC
Where does erythrosiesis take place? - ANSWER Bone marrow
Order of precursor cells - ANSWER MPSC, Rubriblast, prorubricyte, rubricyte, metarubricyte, reticulocyte, erythrocyte
RBC test Exam #1|| 80 QUESTIONS & CORRECT
ANSWERS|| VERIFIED
What is an erythrocyte? - ANSWER A red blood cell
What is erythropiesis? - ANSWER Making of RBC
Where does erythrosiesis take place? - ANSWER Bone marrow
Order of precursor cells - ANSWER MPSC, Rubriblast, prorubricyte, rubricyte, metarubricyte,
reticulocyte, erythrocyte
Why does a RBC have a limited life span? - ANSWER No nucleus which means no cell functions.
(Membranes become less flexible and become destroyed by spleen)
Erythropoietic process - ANSWER 1. Gradual Decrease in size
2. Decrease in basophillic cytoplasm (Gets lighter as it gets older)
3. Increase in density of the chromatin (nucleus gets darker)
4. Loss of nucleus
Write what you know about Diapedisis - ANSWER Proestrogen bleeding occurs in response to estrogen
levels. First, high estrogen levels makes the dog go into proestrus, then the RBC squeeze thru the pores
of the capillary walls.
What does an erythrocyte do? - ANSWER Carrier of O2 and CO2
Where is RBCs removed? - ANSWER By the RES (reticulo-endothelial system)
What is the composition of hemoglobin - ANSWER 4 heme molecules contain 1 iron atom each
, Globin - two pairs of polypeptide chains
Porphyrin Ring
What are polypeptide chains made of? - ANSWER Amino Acids
Compare a PCV to Machinery - ANSWER PCV - Cheap, fast, pretty accurate, for small amount of blood
Machinery - More accurate, reproducible, fast
What is plasma trapping? - ANSWER When the centrifuge is spinning too slowly and traps the plasma
and other cells and falsely elevates the PCV
What does ESR stand for? - ANSWER Erythrocyte Sedimentation Rate
What is ESR? - ANSWER RBC settling by gravity
Is ESR used in Vet Medicine? - ANSWER No, Because it is too time consuming
What happens to PCVs in young animals? - ANSWER Young animals may have anemia due to poor iron
diets in nursing animals
What is normocytic? - ANSWER Normal size
What is macrocytic? - ANSWER Larger cell
What is microcytic ? - ANSWER Smaller cell
What is polychromasia? - ANSWER Multicolored - purple
What is normochromic? - ANSWER normal color
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