Blood
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Monocytes<br />
• Percentage : 3-8%.<br />
• Size : ١٥ um .<br />
• Nucleus : .large, pale and kidney shaped<br />
• ytoplasmC: .abundant and appears pale blue *<br />
• .<br />
• M/E -:<br />
• Many microvilli and pinocytotic vesicles near the cell surface.<br />
• Few cell organelles, small Golgi and azurophilic granules<br />
(lysosomes).<br />
• Life Span 3 Days<br />
• Function -:<br />
• Monocytes can penetrate through capillaries and venules to<br />
reach the C.T. where they can be transformed into<br />
macrophages.<br />
Dr. Amal M. Moustafa, , Department of Histology & Cytology