| Given below is the diagrammatic sketch of a certain type of connective tissue. Identify the parts labelled A, B, C and D, and select the right option about them [AIPMT (M) 2012] |
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A)
Part A Part B Part C Part D Macrophage Fibroblast Collagen fibres Mast cells
B)
Mast cell Macrophage Fibroblast Collagen fibres
C)
Macrophage Collagen fibres Collagen fibres Fibroblast Mast cell
D)
Mast cell Collagen fibres Fibroblast Macrophage
Correct Answer: D
Solution :
[d] Areolar tissue, is a loose connective tissue. It is composed of matrix (formed of glycoprotein and heteropolysaccharides). Fibres (white collagen fibres, yellow elastin fibres and reticulin fibre) and various types of cells (fibroblasts, macrophages, plasma cells and mast cells). Secretion by mast cells help in defence and quicker healing in place of injury.
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