reproductive system Flashcards
reproductive organs that produce gametes and hormones
gonads(testis)
secrete fluids into the ducts of the reproductive system or into other excretory ducts
accessory glands and organs
perineal structures
external genitalia
male gametes produced by the testis
spermatozoa
the fluid ejaculate that contains spermatozoa and the secretions of accessory glands of the male reproductive tract
semen
contains erectile tissue, deposits sperm in the vagina of the female, and produces pleasurable sensations during sexual activities
penis
surrounds the testes
scrotum
conducts sperm bw the epididymis and prostate gland
ductus deferens
secrete fluid that makes up much of the volume of semen
seminal glands
secretes fluid and enzymes
prostate gland
secrete fluids that lubricate the tip of the penis
bulbo-urethral glands
conducts semen to the exterior
urethra
the site of sperm maturation
epididymis
what are the complex network of channels that is connected to the seminiferous tubules
rete testis
the production of spermatozoa and involves mitosis, meiosis, and spermiogenesis
spermatogenesis
what will be produced from each diploid primary spermatocyte
4 haploid spermatozoa
the differentiation of immature male gametes into physically mature spermatozoa; spermatozoon production
spermatogenesis
produce male sex hormones, or androgens, the most important of which is testosterone
interstitial cells
provide nutrients to the developing sperm and form the blood-testis barrier that isolates sperm from the blood
nurse cells
receives secretions from the seminal, prostate, and bulbo-urethral glands
male reproductive tract
lines the epididymis and increases the surface area available for absorption from, and secretion into, the fluid in the lumen
stereocilia
erotic thoughts or stimulation of sensory nerves in the genital region leads to an increase in the parasympathetic outflow over the pelvic nerves
arousal
occurs as powerful, rhythmic contractions take place in the ischiocavernosus and bulbocavernosus muscles and is associated with male orgasm
ejaculation
the site of embryonic and fetal development and of exchange between the maternal and embryonic/fetal bloodstreams; maintains embryo; the normal site of fertilization
uterus
delivers an oocyte or embryo to the uterus
uterine tubes
the site of sperm deposition; it acts as the birth canal during delivery and provides a passageway for fluids during menstruation
vagina
produce milk that nourishes the newborn infant
mammary glands
produces oocytes and hormones
ovaries
contains erectile tissue, and it produces pleasurable sensations during sexual activities
clitoris
contain glands that lubricate the entrance to the vagina
labia
immature female gametes
oocytes
mature female gametes
ova
begins before a woman’s birth, accelerates at puberty, and ends at menopause; ovum production
oogenesis
white blood cells containing granules that are in the formation of primary follicles
granulosa cells
specialized structures in the cortex of the ovaries where both oocyte growth and meiosis I occur
ovarian follicles
forms around the primary follicles
thecal cells
thecal cells and granulosa cells work together to produce what
estrogens
develop as the wall of the follicle thickens and the deeper follicular cells begin secreting fluid that accumulates in small pockets
secondary follicles
mature graafian follicle
tertiary follicle
expanded central chamber of the tertiary follicle
antrum
a protective layer formed from the granulosa cells with the secondary oocyte
corona radiata
ovulation marks the end of what an the start of what
- follicular phase
- luteal phase