Human Anatomy

The Male Reproductive System  Seminal tubules: the region in which sperm is produced, contained in the testis  Epididymis: a narrow, tightly-coiled tube connecting the seminal tubules from the rear of each testical to the vas deferens

Male Reproductive Systems continued…  Vas deferens: transports sperm from the epididymis in anticipation of ejaculation  Seminal Vesicle: secretes the fluid that becomes semen  Prostate Gland: secrete the remainder of the fluid that becomes semen (20-30%)

Male Reproductive Systems continued…  Urethra: a tube that connects the bladder to the genitals for the removal of fluids. The urethra travels through the penis, and carries semen as well as urine  Scrotum: contains the testis  Penis: the external organ in which the urethra is held

Male reproductive information  Males begin to produce sperm at puberty  Sperm lay dormant in the seminiferous tubules of the testis since the fetal period, and begin to increase in number at puberty  The sperm then travel into the epididymis where they are held and continue to develop

Male reproductive information  Testosterone is the principal male sex hormone  It has the key role in developing male reproductive tissues such as testis and prostate as well as promoting secondary sex characteristics, including: hair, skin, larynx, metabolism rates, blood cells, kidney, muscle, bones

Female Reproductive Systems  Ovary: these are equivalent to testis in males, but produce ovum (eggs) rather than sperm  Fallopian Tube (ovarian duct): small tube that carries the egg from the ovaries to the uterus. It is ciliated (has projections on the tube), which helps move the egg forward

Female Reproductive Systems continued…  Uterus: this is the major sex organ for females. Fetal development occurs here  Endometrium: the inner lining of the uterus. The fertilized egg (zygote) implants itself in the endometrium. It is also the portion that is sloughed off during menstruation

Female Reproductive Systems continued…  Cervix: the lower, narrow portion of the uterus. It connects the vagina to the uterus through the cervical os  Vagina: tubular tract connecting the labia to the cervix. It is an internal structure, often used to refer to the labia  Labia: external lip-like structures

Female Reproductive Systems continued…  Urethra: shorter than in males and emerges above the vaginal opening  Clitoris: the visible button-like portion is located in front of the urethra and vagina. The penis is homologous (equivalent) to the clitoris.