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14 Cards in this Set

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As early as ___ of gestation in the blood islands of the _____ of the human embryo. Confined to erythropoiesis (_______ ________). Production of primitive cells containing embryonic hemoglobins

19th, yolk sac, primitive hematopoiesis

Portland: 2 zeta + 2 gamma


Gower 1: 2 zeta + 2 epsilon


Gower 2: 2 alpha + 2 epsilon

Primitive cells containing embryonic hgbs



Hepatic phase

Start of Definitive Hematopoiesis


@ 3rd month, fetal liver becomes active


Production of erythrocytes AND granulocytes

Hgb F (2 alpha + 2 gamma)


Hgb A (2 alpha + 2 beta)


Hgb A1 (2 alpha + 2 delta)

Definitive erythroblasts containing fetal hgbs

Components (Direct Plt Determination


Rees-Ecker:


Guy & Leake:


Brecker-Cronkite:


Unopette:

RE: sodium citrate, formalin, brilliant cresyl blue


GL: sodium oxalate, formalin, crystal violet


BC: EDTA, 1% ammonium oxalate (to lyse rbc); use phase contrast microscopy


U: 1% ammonium oxalate

Unopette:


Diluent - 1.98mL


Blood - 0.02mL


Total Volume: 2mL


Dilution (1:100)

Between ___ & ___ month gestation, BM becomes the primary site of hematopoiesis



sources


at birth:


adult:



bones:

5th and 6th month


at birth: BMadult: Sternumbones: Flat bones of sternum, ribs, vertebrae, skull, pelvis

chromatin pattern

Most reliable indicator of maturity

Hypoxia

Primary stimulus of erythropoiesis.

Retics stay in __ for ___ days and ___ day in ___

Retics stay in BM for 1-2 days and 1 day in PB

(3) Polychromatophilic Normoblast/Polychromatic Erythroblast

Last stage capable of mitosis


start of hgb synthesis


Murky blue-gray to pink-gray

(4) Orthochromic Normoblast/Erythroblast/Metarubricyte

small pyknotic nucleus


Last nucleated stage

Direct Plt Determination


Reese-Ecker:


Guy & Leake:


Brecker-Cronkite:


Unopette

RE: sodium citrate, formalin, brilliant cresyl blue


GL: sodium oxalate, formalin, crystal violet


BC: EDTA, 1% ammonium oxalate (to lyse rbcs); Phase contrast microscopy (IDEAL)


Unopette: 1% ammonium oxalate

UNOPETTE


Diluent: 1.98mL


Blood: 0.02mL


TV: 2mL


Dilution (1:100)

Indirect Plt Determination


1.


2.


3.

Dameshek


Fonio


Olef

Imatinib mesylate

Used to block tyrosine kinase signaling