77. Granulopoiesis Flashcards
1
Q
what is granulopoiesis
A
developoing basophils, eoisinpills, neutrophils (all temed granuosytes as they appear as granules)
2
Q
what does it inovlve
A
involves cytoplasmic changes dominated by synthesis of proteins for the azurophilic granules and
specific granules. These proteins made in ER
3
Q
what are the stages
A
- pluripotent hemopoietic stem cell
- myeloblast - first recognizable cell has finely dispersed chromatin, and faint nucleoli
- promyelocyte - has basophilic cytoplasm and azurophilic granules
- myelocyte (eoisno, neut, baso) - doesn’t hv nucleolus + specific granules produced. eosinophilic myelocytes= red gran, basophilic = coarse blue gran, neutrophilic = fine salmon gran
- metamylocytes - doesnt divide and make granules
- Band cell - cytoplasm filled with granules
- mature granulocyte
4
Q
what are GCSFs and how long does the process take
A
proteins that signal cells i bone marrow to begin process of becoming granulocytes.
10-14 days