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Module 4
A&P 2 -- Chapter 16 Male Rep. System Test
Term | Definition |
---|---|
2 Primary organs of the male reproductive system | Testicles and Scrotum |
Testicles (testes) | Produce sperm and secrete testosterone |
Scrotum | External sac that houses the testicles and acts as climate control |
Gametes | Sex cells (males -- sperm; females -- ova) |
Gonads | Sex glands (males -- testicles; females -- ovaries) |
Semen | The end product of combined secretions from seminal vesicle, prostate and Cowper's glands and ducts of the male reproductive system |
Journey of the Sperm (9 points) | 1. Seminiferous tubules 2. Epididymus 3. Vas Deferans 4. Seminal Vesicle 5. Ejaculation duct 6. Prostate gland 7. Cowper's gland (aka bulbourethral gland) 8. Urethra 9. Penis |
Seminiferous tubules | Specialized coils of tiny tubules responsible for production of sperm |
Epididymus | Tightly coiled tubule that stores sperm until mature, in preparation for ejaculation |
Vas deferans | Narrow, straight tubes that transports sperm from the epididymus to the pelvic cavity just behind the bladder |
Seminal vesicle | Pair of small sac-like pouches that attach the vas deferans near the base of the bladder. Secretes and produces fructose that provides source of energy to help move sperm |
Ejaculatory duct | Created when seminal vesicle duct merges with vas deferans and empties into the urethra |
Prostate gland | Walnut-shaped, located below urinary bladder infront of rectum; contributes add'l fluid to ejaculate which helps with motility and nourishment for sperm |
Cowper's/bulbourethra gland | Pea-sized structures located on sides of the urethra below the prostate gland, produce clear fluid that serves as lubricant for intercourse |
Urethra | Extends down the length of penis, opens at urinary meatus of the glans penis, carries/empties urine from bladder, carries/expels semen, flow of urine is blocked from urethra, allowing only semen to be ejaculated |
Penis | Contains urethra, attaches to the wall of the abdomen, the body/shaft and the glans |
Foreskin (prepuce) | Loose, retractablle fold of skin that covers the tip of the penis |
Circumcision | Surgical removal of prepuce |
Smegma | Waxy, odorless substance secreted by small gland in the foreskin |
Vasectomy | Surgical procedure performed on the vas deferans to prevent ejaculation of sperm. Book also calls this sterilization |
Sterilization | Cannot reproduce |
Flacid | Weak, lack of muscle tone |
Epispadias | Urethra opens on the upper side of the penis |
Hypospadias | Urethra opens on the lower side of the penis |
Hydrocele | Build up of fluid in scrotum |
Impotence | Inability to get or sustain an erection |
Phimosis | Tightness of prepuce/foreskin |
Balanitis | Inflammation of the glans penis |
Orchitis | Inflammation of the testicles |
Anorchism | Absence of one or both testicles |