Question : a] What is puberty ? b] Describe in brief the functions of the following parts in thehuman male reproductive system: {i) Testes (ii) Seminal vesicle (iii) Vas deferens {iv) Urethra OR Explain the significant function of each structure in human male reproductive system. c] Why are testes located outside the abdominal cavity? d] State how sperms move towards the female germ cell?

Question : a] What is puberty ? b] Describe in brief the functions of

1.	Question : a] What is puberty ? b] Describe in brief the functions of the following parts in thehuman male reproductive system: {i) Testes (ii) Seminal vesicle (iii) Vas deferens {iv) Urethra OR Explain the significant function of each structure in human male reproductive system. c] Why are testes located outside the abdominal cavity? d] State how sperms move towards the female germ cell?
Answer» Solution :a] The period of life when production of GERM cells, i.e. ova (female) and SPERM (male) start in the body. This period of sexual maturation is called puberty. b] i] Testes: Paired, oval-shaped male sex glands. CONSIST of seminiferous tubules, where the sperms are produced. Produce a male sex hormone called testosterone. II] Seminal VESICLES: Fluid and nutrients combine with sperm to form semen, Milky, viscous fluid contains fructose, proteins and other chemicals for nourishing and stimulating sperms. (iii) Vas deferens : • Also known as sperm duct. • Connects testes for the passage of semen (iv) Urethra : Common passage for both the sperms and urine, but never carries both of them at the same time. c] Testes are located outside the abdominal cavity in scrotum because sperm formation requires a lower temperature than the normal body temperature d] The sperms are tiny bodies that consist of mainly genetic material and a long tail that helps them to move towards the female germ-cell