ANIMAL TISSUE - Career Point

MONOCYTES– Size 12-20 µ– Largest Blood Corpuscles.– Life span-In blood 10-20 hours but in connective tissue it may be week/month.– Nucleus kidney shaped/ bean shaped.– Power of Diapedesis is present.– Active motile WBC.– Phagocytic nature.– Destroy Bacteria & Viruses by phagocytosis so called Macropoliceman.CAREER POINT .– Also called scavenger of blood because they engulf damaged or dead & minute bits of bloodcorpuscles.LYMPHOCYTES– Amoeboid in shape.– Size 6-16 µ (smallest WBC)– Life span in blood less than 10 days but in connective tissue it may be month/year/whole life– Large nucleus is present.– Lymphocytes are of 2 types.T-LYMPHOCYTES– Produced in bone marrow but mature in thymus gland. On the basis of function T-Lymphocyts are of 4types1. T-Killer/Cytotoxic : - Direct kill Bacteria or Viruses2. T-Helper : - Stimulate B-lymphocytes to produce antibody.3. T-Suppressor : - Suppress T killer & protect immune system.4. T-memory : - Stones profile of bacteria or virus or protein.B-LYMPHOCYTES– Produced in bone marrow and mature in bone marrow. Its function is to produce, synthesize & transportantibodiesPLATELETS– Also known as Thrombocytes– Found only in mammals while in other vertebrates, Spindle corpuscles are present which perform samefunction.– They are non nucleated and derived from Megakaryocyte cells of bone marrow.– In shape platelets are disc like, oval shaped or biconvex.– While spindle corpuscles are spindle in shape & round nucleus is present in the centre.– In their cytoplasm basophilic granules are present which can be stained by methylene blue.Corporate Office: CP Tower, IPIA, Road No.1, Kota (Raj.), Ph: 0744-3040000 (6 lines) ANIMAL TISSUE 38