Development Flashcards

1
Q

RBC stages

A
Pronormoblast 
Basophilic normoblast 
Polychromatophilic normoblast 
Orthochromic normoblast 
Reticulocyte 
Erythrocyte

PB PORE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Hgb A, B, F changes

A

Alpha always, F fades, Beta becomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Mesoblastic (yolk) phase

A

19 days gestation

Starts with primitive nRBC, makes embryonic Hgb as well as alpha Hgb chains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Hepatic phase

A

6 weeks gestation
Produces mainly RBCs, but starts on granulocytes, monocytes, and megakaryocytes
Hgb F (alpha and gamma) mostly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Myeloid/medullary phase

A

5th month of gestation

Bone marrow makes granulocytes, M:E getting close to 3:1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly