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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

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