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IHO Week 1 > Hematopoietic Tissue > Flashcards

Hematopoietic Tissue Flashcards

1
Q

stages of erythropoiesis

A 
proerythroblast
basophilic erythroblast
polychromatophilic erythroblast
orthochromatophilic erythroblast
reticulocyte
mature erythrocyte
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2
Q

Prominent features: Proerythroblast

A

3 nucleoli

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3
Q

Prominent features: Basophilic erythroblast

A

Intense basophilic cytoplasm

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4
Q

Prominent features: Polychromatophilic erythroblast

A

Less basophilic cytoplasm

Checkerboard pattern in nucleus

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5
Q

Prominent features: Orthrochromatophilic erythroblast

A

Dense nucleus, off-center

Eosinophilic cytoplasm

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6
Q

Prominent features: Reticulocyte

A

No nucleus, rRNA mesh (specific stain methylene blue)

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7
Q

Prominent features: Mature erythrocyte

A

No nucleus, eosinophilic cytoplasm

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8
Q

When switch from blue to red, mitotic to not-mitotic?

A

poly –> ortho

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9
Q

Stages of granulopoiesis

A

myeloblast –> promyelocyte –>
myelocyte –> metamyelocyte –> band cell –>
eosinophil, neutrophil, basophil

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10
Q

hallmark myeloblast vs promyeloblast

A

promyeloblasts have granules

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11
Q

at what stage granulopoiesis start showing characteristics of cell type

A

myelocyte

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12
Q

B lymphocytes develop in

A

bone marrow and spleen

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13
Q

T lymphocytes develop in

A

thymus

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14
Q

stages lymphopoiesis

A

MLP –> lymphblast –> prolymphoblast –> b-lymphocyte, t-lymphocyte, NK cells (cannot tell apart stages)

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15
Q

Monopoiesis stages

A

CMP –> monoblast –> promonocyte –> monocyte

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16
Q

yolk sac

A

hematopoiesis

17
Q

Liver

A

erythropoiesis dominates until mid-fetal life

18
Q

spleen

A

hematopoiesis at 3rd month
erythropoiesis and granulopoeisis between 3rd and 5th fetal months - 7th-8th

lymphopoiesis continues throughout life

19
Q

bone marrow

A

begins in 5th fetal month

20
Q

thymus

A

lymphopoiesis only

IHO Week 1 (9 decks)

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