Human reproductive systems (Male and female reproductive system)

 Male and female reproductive system 

Male reproductive system 

The male reproductive system consists of the testes and a series of ducts and glands. Sperm are produced in the testes and are transported through the reproductive ducts. These ducts include the epididymis, vas deferens, ejaculatory duct and urethra. The reproductive glands produce secretions that become part of semen, the fluid that is ejaculated from the urethra. These glands include the seminal vesicles, prostate gland, and bulbourethral glands.

The parts of the male reproductive system 

Parts of the male reproductive system and their functions 

1. • Penis: This tubular, muscular organ fills with blood during arousal, thus making sexual intercourse possible.
   • Scrotum: This pouch-like sac hangs below the penis and encases the testes, or testicles.
   • Testicles: These two oval shaped organs produce sperm cells and testosterone.

Female reproductive system 

The female reproductive system comprises internal and external organs that facilitate menstruation and procreation. This organ system is responsible for producing gametes (termed eggs or ova), regulating sex hormones, and maintaining fertilized eggs as they develop into mature fetuses ready for delivery. A woman's reproductive years are between menarche (the first menstrual cycle) and menopause (cessation of menses for 12 consecutive months). During this period, cyclical expulsion of ova from the ovary occurs, with the potential for fertilization by male gametes or sperm. This cyclic expulsion of eggs is a normal part of the menstrual cycle. Separately, the internal and external female genitalia facilitate fertilization from the unison of ova and sperm, leading to the process of gestation, also termed pregnancy. Depending on how the conception evolves, typically within 9 months or 3 trimesters, the gestation can produce one or more fetuses that, when born, are termed infants.