Blood
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C- Colour:-<br />
• Fresh, single RBC is greenish<br />
yellow due to minimal HB.<br />
• A drop of blood appears red as<br />
it contains large number of<br />
RBCs.<br />
• In stained sections, RBCs with<br />
normal HB appear acidophilic<br />
with pale centre<br />
(normochromic).<br />
• D- Number:-<br />
• In males: 5 - 5.5 million /mm3.<br />
• In females: 4.5 - 5 million<br />
/mm3.(due to loss of blood<br />
during menstruation and<br />
depression of bone marrow by<br />
female sex hormones).<br />
Dr. Amal M. Moustafa, , Department of Histology & Cytology