-
Leydig cells secrete:
Testosterone
-
Sertoli cells do what?
- support sperm development.
- Secrete fluid into lemen of seminiferous tubles to support sperm development and transport.
- provide nutrients for developing sperm
- secerete paracrines that stimulate spermatogenesis.
-
Seminal vesicles
secrete alkaline fluid with fructose, enzymes and prostaglandins
-
prostate gland
secretes citrate and enzymes
-
bulbourethral glands
secrete viscous fluid with mucus
-
FSH in males stimulates
Gametogenesis
-
LH in males stimulates
Androgen (testosterone) secretion
-
androgens in males does what 6 things
- stimulates spermatogenesis
- promote dev. of 2nd sex characteristics in puberty and maintains these in adult live.
- increase sex drive.
- promote protein synthesis in skeletal msucle. stimulate growth hormone secretion which permits bone growth during adolescence.
- promote dev. of male reproductive structures during embryonic live.
-
Sperm Head consists of...
- chromosomes
- acrosomes
- enzymes necessary for fertilization
-
Sperm midpeice consists of
mitochondria to provide "power" to tail movement
-
sperm tail
whiplike movements to propel sperm
-
What are the phases of Spermatogonium
spermatogonia-->primary spermatocytes-->secondary spermatocytes-->spermatids-->spermatozoa
-
what are the characteristis of the female reproductive system
- Cycle changes in activity: menstural cycle
- Restricted periods of fertility: ovulation
- Limited gamete production: Pool established at birth.
-
what are the female reproductive organs
- Gonads: Ovaries
- Reproductive tract: uterus, uterine tubes, vagina
- External Genitalia: Vulva
-
Ovaries are the site of...
Ova Maturation
-
ovaries consist of...
connective tissue with follicles
-
ovaries are separte from...
reproductive tract
-
Follicles
- contain one ovum
- develope in the ovary
- start as primordial follicle (oocyte aka ovum)and granulosa cells
- later in development, some granulosa cells become theca cells
-
granulosa cells are the target cells of ___ and ___hormones and secrete ____ in response
estrogen and FSH and secrete chemical messengers in response
-
granulosa cells secrete inhibin that provides...
negative feedback to FSH secretion
-
granulsosa cells transport nutrients to ___ through ___
oocytes through gap junctions
-
granulosa cells also secrete ____
estrogens
-
The uterus is the site of fetal development and consists what there sections
- body: Upper portion
- Cervix: canal leading to the vagina
- Cervix + vagina: Birth canal
-
The wall of the uterus is made up of...
- Perimetrium (outter layer)
- epithelial cells and connective tissue
- Myometrium (Middle layer) this is the thickest layer
- smooth muscle
- Endometrium: (inner layer)
- epithelial cells, connective tissue,
- numerous glands
-
Uterine tubes (Fallopian tubes or oviducts) are
transport ova from ovaries to uterus. site of fertilization.
-
menstrul cycle includes these two things...
ovarian cycle and uterine cycle.
-
Menstrual cycle is caused by changes in __ & ______ concentrations.
Estrogen & Progesterone
-
Follicular Phase lasts for about____days and includes ________ to _________.
14 days; menstruation to ovulation
-
luteal phase lasts for exactly _____days and includes _______ to before_________.
14 days; ovulation to before menstruation
-
hormonal control of follicular phase
FSH and estrogens stimulate follicle growth and development.
-
LH surge triggers ______
ovulation and development of the the corpus luteium of the gluteal phase.
-
profliferian phases is when the uterus
prepares for the fertelized egg
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