The male reproductive system Today I Will… Content Objective: identify the male reproductive system. Language Objective: explain in my own words the male reproductive system. Class rules • Respect others’ feelings and values • Use proper terms for body parts. • Be kind and supportive • Discuss topics responsibly outside the classroom. If you have any further questions, ask an informed adult like your parents or other educators. Male reproductive system What do you already know about the male reproductive system? Male reproductive system How does it make you feel learning about this system? Do you know the name of any of the parts? functions There are two functions of the male reproductive system: 1. The male reproductive system produces gametes –specifically sperm. 2. The male reproductive system produces hormones – testosterone. Testes/Testicles • The primary organ of the male reproductive system are the testes. • Males have two testes. • The testes produce the male gamete, sperm or spermatozoa. • The testes produce testosterone. Testosterone is the male sex hormone. Testosterone controls sperm production and male sexual characteristics. Testis scrotum • The testes are located outside the body in an external sac called the scrotum. • It is important that testes are located outside the body. The scrotum protects the testes. Scrotum epididymis • Sperm produced in the testes move into a structure that surrounds part of the testes. • This structure is called the epididymis. Sperm fully mature and are stored in the epididymis. Epididymis Sperm ducts • The sperm ducts are fine tubes that connect the testes to the urethra. • The sperm ducts travel over the bladder and merge with the urethra in a gland called the prostate. Prostate Sperm ducts Prostate gland Sperm Ducts The prostate produces fluid called seminal fluid which mixes with sperm. Seminal fluid nourishes and protects sperm. Prostate Seminal vesicles The seminal vesicles also produce seminal fluid and protect the sperm. The sperm ducts pass by the seminal vesicles before the prostate. Seminal vesicle Semen Semen is the mixture of the seminal fluids and sperm. urethra The urethra is a tube that carries sperm, as well as urine, to the penis. It travels through the penis and expels fluid outside the male body. Urethra Penis • Sperm leaves the male’s body through the penis. • Smooth muscles line the glands of the reproductive system. The muscles contract to eject sperm out of the body through the penis. Penis Activity Complete worksheet in pairs!
