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All main topics / Medicine / Microanatomy

Micro: Blood (26 Cards)

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1
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What percentage of an animal's weight is in blood?
6-8%
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About how many RBCs, Platelets, and WBCs each are in a microliter of blood?
5-10 million RBCs
200-400 thousand platelets
4-12 thousand WBCs
3
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What creatures have elliptical RBCs?
Camelids
Fish
Birds
Reptiles
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What creatures have nucleated RBCs?
Fish
Birds
Reptiles
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What is the range of sizes of RBCs?
4-10 microns
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What is central pallor and where is it seen?
It is the pale center of RBCs due to membranes being really close together in dogs and humans.
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What is rouleaux and where is it normally seen?
Rouleaux is stacking of cells like coins due to attractive electric charges.  It is seen in horses and cats.
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What percentage of the cell mass of blood is RBCs?
40-50%
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What are Howell-Jolly Bodies and how do they arise?
They are fragments of the nucleus that are left after plucking out the nucleus.
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What are Heinz bodies and how do they form?
They are oxidized hemoglobin that results from feeding onion powder to cats.
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What is polychromasia?
Larger and younger RBCs present in the blood
12
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What are reticulocytes?
They are large, young cells present in blood stained with new methylene blue.
13
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What is anisocytosis?
Variability in cell size
14
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What is poikilocytosis?
Variation in cell shape
15
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What is macrocytosis?
A large number of polychromatophils
16
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What is microcytosis?
Smaller cells than normal
17
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What is crenation?
Odd looking RBCs due to not letting slides dry before fixing and staining
18
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What are shistocytes?
Shards of RBCs cased by being close-lined by fibrin.
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What are spherocytes and how do they happen?
They are chunks of cytoplasm removed from RBCs and is caused by pluckers accidentally taking out the plasma.
20
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What are target cells and how do they happen?
RBCs that look like targets because of a change in cholesterol phospholipid that changes the consistency of the membrane.
21
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What are stomacytes?
Cells that have the inner lipid bilayer folded which results in a mouth-shaped structure.
22
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What are dacryocytes?
Teardrop shaped RBCs caused by not returning to normal morphology after moving through capillary. 
23
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What is hypochromasia?
Increased central pallor with a thin rim of cytoplasm
24
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What is agglutination?
RBCs stuck together because of an anitgen-antibody reaction.  It is not normal in any animal.
25
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How can you tell the difference between a rouleaux and an agglutination?
Put saline with the blood to see if the cells separate.
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What are acanthocytes?
Golf club like protrusions.
Flashcard set info:
Author: toncrayb
Main topic: Medicine
Topic: Microanatomy
Published: 17.10.2009
Tags: veterinary, medicine, oregon, Blood
 
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