Blood
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E/M:<br />
1-Cell membrane:-<br />
Irregular and covered with<br />
a thick cell coat.<br />
2- Hyalomere:- contains<br />
Tubules & vesicles invaginated<br />
from the cell membrane.<br />
Actin-like mirofilaments and<br />
microtubules to maintain the<br />
ovoid shape of the platelet.<br />
3- Granulomere: (chromomere): Contains:-<br />
Alpha granules: contain fibrinogen.<br />
Beta granules: mitochondria .<br />
Delta granules: contains serotonin, ATP, ADP and calcium.<br />
Lambda granules: lysosomes.<br />
Glycogen granules.<br />
Dr. Amal M. Moustafa, , Department of Histology & Cytology
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