reproduction - females Flashcards
(18 cards)
structure and function the ovaries
paired, held close to kidneys by ovarian ligament
produce ova, secretes oestrogen and progesterone
function of FSH
triggers growth of eggs in ovaries to mature them in preparation for ovulation
function of oestrogen
aids ovulation
thickens uterus lining
function of LH
triggers release of egg
function of progesterone
preps uterus lining
explain the process of oogenesis
- primary follicles develop into graafian follicles, they contain an ovum (egg)
- graafian follicles secrete oestrogen
- follicle reaches full size
- ruptures and releases ovum (egg)
- follicle forms scar tissue known as corpus leuteum, this secretes progesterone
structure and function of the infundibulum
funnel like section of fallopian tube, include fimbraiae (finger like projections reaching towards ovary) smooth muscle
fimbraiae catch the egg once released, then swept into the fallopian tube
structure and function of the magnum / ampulla
major channel in fallopian tube, smooth muscle
site of fertilisation
structure and function of the isthmus
small channel, smooth muscle
connects magnum to top of uterus
structure and function of the utirine tube
narrow tube, smooth muscle, cilia for movement
3 parts : infundibulum, magnum, isthmus
collects ova as they are released - moves them to uterine horns, provide correct environment for sperm and ova
structure and function of the uterus
2 parts, pair of horns and a body that has 3 layers
receptacle for embreo development, provides means for foetal maturity
what is myometrium
smooth muscle, allows uterus to stretch allowing for growth and producing contractions during birth
structure and function of the cervix
short, thick walled, smooth muscle tube
connects uterus to vagina, prevents infection, opens to allow sperm in and blood and offspring out
structure and function of the vulva
folds of skin to cover vagina
prevents infection
structure and function of the vagina
canal made of smooth muscle
site of penetration
what is the process that occurs between fertilisation and implantation
- sperm releases enzymes to break through outside of ovum
- cell divides my mitosis
- ovum now a zygote
- zygote drifts down tract of uterine horns
what is the oviduct
(fallopian tube)
a twisted tube divided into 5 sections:
- infundibulum
- magnum
- ishumus
- shell gland
- vagina
what is the function of implantation
- enables developing embryo to access oxygen + nutrients
- initiates hormonal changes to maintain pregnancy
