Write notes on any two of the following:
Human male reproductive system

Explanation

Human Male Reproductive System It consists of various glands, ducts and supporting structures. The structures present in this system are either paired or unpaired.
Testes are primary sex organs, posterior to the penis within the scrotum, produce spermatozoa and" testosterone.
Serninal vesicles are club-shaped glands posterior to prostate, secrete alkaline fluid containing nutrients, fructose and prostaglandins
Scrotum is the pouch of skin, posterior to the penis, encloses and protects testes.
Penis is the unpaired organ, anterior to the scrotum and attached to pubis, conveys urine to outside of body.
Prostale gland and Cowper.s gland secrete fluids which neutralise acidic environment of vagina and lubricate urethra and penis, respectively.