<prompt> Benign prostatic hypertrophy resulting in urinary obstruction arises form which lobe of prostate gland?AnteriorPosteriorMedianLateral  <response>: Ans. is c i.e., Median Anatomical division of ProstateProstate has 5 lobes :Anterior lobe Is a small isthmus connecting the two lateral lobes in front of the urethra.Posterior lobe It connect the two lateral lobes behind the urethra. It lies behind the median lobe and the ejaculatory ducts. Carcinomas are most common in this lobe.Median lobe Lies behind the upper part of the urethra, in front of the ejaculatory ducts just below the neck of the bladder. Benign Hyperplasia of Prostate arises in this lobe.Lateral lobes Lie one on each side of the urethra.Zonal or surgical division of ProstateProstate has 3 distinct zonesa The peripheral zone PZ - accounts for 70 of volume of young adult prostateb The Central zone CZ - accounts for 25c The transition zone TZ - accounts for 5Carcinoma of prostate arises most commonly in - the peripheral zoneBenign prostatic hyperplasia originates in - the transition zone 