Reproductive
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16 terms
Terms | Definitions |
|---|---|
 reproductive system | -produces, stores, nourishes, and transports gametes -produces sex hormones that affect structures and functions of all other systems |
| m v. f gamete | -sperm -ovum |
| m v. f reproductive organ/gonad | - testis - ovary |
| male reproductive tract | -epididymis -ductus deferens -ejaculatory duct -urethra |
| female reproductive tract | -uterine tube -uterus -vagina |
| male accessory glands and organs | -seminal vesicle -prostate -bulbourethral gland |
| female accessory glands and organs | -vestibular glands |
| external genitalia | (male) -scrotum -penis |
| perineal structures | (female) -vulva -labia minora -labia majora -mons pubis |
| testes | -secrete sex hormone androgen -produce sperm/spermatozoa *travel along epididymis, ductus deferens, ejaculatory duct and urethra *expelled from penile urethra in semen |
| ovaries | -produce eggs *travel along uterine tubes to uterus |
| pathway of spermatozoa | 1. produced in testis 2. epididymis 3. ductus deferens 4. ejaculatory duct 5. urethra |
| descent of testis | -develop in abdominal cavity -7th month start descent into scrotum -very important that they move out of the body cavity |
| spermatic cord | -starts at testic and continues into abdominal cavity -contains: *ductus deferens *testicular artery and vein *nerves *pampiniform plexus of veins |
| spermatogenesis | 1. spermatogia (stem cells) develop into primary spermatocyte and spermatogium *these diploid cells undergo meiosis 2. primary spermatocyte becomes secondary spermatocytes *these diploid cells undergo a second stage of meiosis 3. secondary spermatocytes becomes four spermatids *these haploids cells develop into spermatozoon ~~~~~takes about 9 weeks~~~~~~~ |
| spermiogenesis | -development of a spermatid into spermatozoon -spermatids are embedded in sustentacular cells/nurse cells |
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