Blood

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RED BLOOD CORPUSCLES (RBCS) Erythrocytes • A- Shape of RBCs:- • They are rounded, biconcave disc shape. • In slow blood stream and in blood film they adhere together forming “Rouleaux” due to high surface tension. • B- Size:- • Normal diameter: • 6-9 um • (average 7.5 um). Dr. Amal M. Moustafa, , Department of Histology & Cytology
C- Colour:- • Fresh, single RBC is greenish yellow due to minimal HB. • A drop of blood appears red as it contains large number of RBCs. • In stained sections, RBCs with normal HB appear acidophilic with pale centre (normochromic). • D- Number:- • In males: 5 - 5.5 million /mm3. • In females: 4.5 - 5 million /mm3.(due to loss of blood during menstruation and depression of bone marrow by female sex hormones). Dr. Amal M. Moustafa, , Department of Histology & Cytology
Page 1 and 2: Dr. Amal M. Moustafa, , Department
Page 3 and 4: The Blood Dr. Amal M. Moustafa, , D
Page 5: The Blood Cells Dr. Amal M. Moustaf
Page 9 and 10: LEUCOCYTES (WBCS) • - :Definition
Page 11 and 12: Neutrophils (leucocytes polymorphon
Page 13 and 14: Function:- • Defense against micr
Page 15 and 16: Function:- 1-In allergic conditions
Page 17 and 18: Lymphocytes Non granular leucocytes
Page 19 and 20: Small Lymphocytes • Percentage: 1
Page 21 and 22: T. Lymphocytes • Development: •
Page 23 and 24: Classification of lymphocytes Devel
Page 25 and 26: PLATELETS (THROMBOCYTES) Dr. Amal M
Page 27 and 28: E/M: 1-Cell membrane:- Irregular an
Page 29 and 30: Number RBCs Neutrophils Anaemia or
Page 31 and 32: • Neutropenia: • It is a decrea
Page 35 and 36: PLATELETS RBCs Dr. Amal M. Moustafa
Page 41: Dr. Amal M. Moustafa, , Department

Blood

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