In essential hypertention changes seen in the heart are
Ans. is 'b' i.e., Cardiac cell hypertrophy Hypertrophy - It's increase in size of a tissue d/t increase size of individual cells.Hyperplasia - Increase in size of a tissue as a result of increased no. of component cells . It's the principle mechanism for increased size in tissue composed of labile & stable cells.Hypertrophy is seen in following tissues #Tissue - Cause of increased demandsSkeletal muscle hypertrophy - physical activity, weight lifting*Cardiac muscle hypertrophy - Increased pressure load (Hypertension)*Increased volume load *("Valve incompetence causing regurgitation of blood")Smooth muscle hypertrophy - obstructive lesions (Wall of intestine & urinary bladder)Renal hypertrophy - Unilateral disease of one kidneyRemoval of one kidneyHyperplasia* is seen in - Breast growth* (during pregnancy & lactation)Both hypertrophy and hyperplasia* is seen in - uterine growth during pregnancy*
Cardiac cell hyperplasia
Cardiac cell hypertrophy
Incresed in the mitochondrial number
Increase in size of mitochondria
Hypertension