Organs Flashcards
What is the function of the reproduction tract? (4)
hormonogenesis, gametogenesis, gamete transport, genetic contribution to offspring (pregnancy)
What is the function of the ovary? (2)
produce eggs, synthesize sex steroids (estrogen + progesterone)
What is the medulla?
inside tissue of the ovary that contains blood vessels and nerves
What is the cortex?
outer portion of the ovary where follicules are located
as follicules grow, they move around the edge of the cortex, building outer casing while oocyte stays the same
What are the functions of the oviduct? (3)
structure for oocyte capture and transport, transporting sperm to egg, fertilization cite
What is the infundibulum?
catches eggs released, mouth of oviduct
What is the ampulla?
where egg and sperm meet (fertilization) top of oviduct
What is the isthmus?
sperm reservoir to meet egg during ovulation (right by uterine horn)
What do the oviduct secretions do? (2)
provide optimum oocyte and zygote (while it travels) environment, aid sperm mobility
What are the functions of the uterus? (4)
structure for sperm transport, regulation of luteolyosis (regression of corpus luteum (CL)), cyclitity, environment for pregnancy, secretes hormones
What does the perimetrium of the uterus do?
outermost layer of the uterus, protects the organ and provides support
What does the myometrium of the uterus do?
muscular middle outer layer, contractions
What does the endometrium of the uterus do?
thickest layer, maintenance of pregnancy, menstruation
What does the cervix do?
regulates access into uterus as a barrier
What do the secretions of the cervix do? (3)
provide lubrication to promote/inhibit sperm, flush out microorganisms, seal of uterus during pregnancy ( cilia)
What does the vagina do?
copulatory organ (device used to transfer/receive sperm)
What do the vaginal secretions do?
aid in intercourse, inhibit microorganism growth, maintain acidic pH
What do Sertoli cells do? Where are they located?
In the seminiferous tubules, help immature sperm grow and become mature
What do the testis do? (2)
produce male gametes, synthesize testosterone
Which cells produce testosterone in the testis?
Leydig cells
What does the epididymus do? (3)
sperm transport, regulate maturation and fertilization capacity of sperm, contributes to seminal plasma
What is the rete testis?
central duct where all of the mature sperm funnel into
What is the significance of the theca and granulosa cells?
the granulosa cells are around the growing oocyte but can’t make CYP 19 so the theca cells make it and its transported to granulosa cells
What takes pregnenolone to hydroxy, hydroxy to DHEA?
CYP17
What converts testosterone to estradiol?
CYP 19
What takes cholesterol to pregnenolone?
CYP11A
