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What is Brown color of contusion is due to - and explain in detail?
Ans. is 'c' i.e., Haemosiderin Color change and age of bruise (Contusion!o After a bruise has appeared, it tends to get smaller from periphery to center and passes through a series of colour changes. These are due to disintegration of RBCs by hemolysis and breakdown of hemoglobin into the pigments haemosiderin, haematodin and bilirubin changes are: -At first: Red (oxyhemoglobin)Few hours to 3 days : blue (reduced hemoglobin)4th day : Bluish-black to brown (haemosiderin)5-6 days: Greenish (haematodin)7-12 days : Yellow (Bilirubin)2 weeks : Normal (absorption of pigment)