Reproductive system Flashcards
Name the parts of the male reproductive system (9)
Cowper glands, prostate, seminal vesicles, sperm duct, urethra, penis, scrotum, epididymis, testes
Function of testis
make sperm and testosterone
Function of epididymis
store sperm
Function of sperm duct
Carries sperm to urethra
Function of penis
release sperm
Define semen
sperm and seminal fluid
Function of glands
Make seminal fluid
How many chromosomes in nucleus of sperm
23
Parts of sperm
head and nucleus, collar and mitochondria, tail
What does testosterone do
Causes primary male sex characteristics in early life, eg: penis
Causes secondary male sex characteristics at puberty
Secondary sexual male characteristics
deep voice, facial hair, shoulders widen
Secondary sexual female characteristics
breast development, pubic hair, hips widen
Define secondary sexual characteristics
features that distinguish males from females apart from sex organs
Infertility
inability to produce offspring
Male infertility: cause, due to, treatment
caused by poor sperm mobility, poor health, low sperm count
Due to poor lifestyle, smoking, obesity
Treated by weight loss, change of lifestyle
Parts of female reproductive system (6)
Ovary, fallopian tube, uterus, lining of uterus, cervix, vagina
Function of ovary
make eggs
Function of fallopian tube
fertilisation occurs here
Uterus function
fetus grows here
Lining of uterus
prepares for pregnancy
Function of cervix
sperm deposited here
Function of vagina
holds penis
Female infertility: cause, due to, treatment
caused by failure to ovulate
due to ovarian cysts and hormonal disorders
treated by hormones, surgery, IVF
Disorder of the female reproductive system
Fibroids: benign tumours of uterus
Cause, symptoms and treatment of fibroids
Cause uncertain, perhaps abnormal response to contraceptive
Symptoms can be none or heavy periods, pain, infertility
No treatment except monitoring or surgery
Cycle of events in ovary (4)
-20 oocytes in 1 mth, all but one die, divides by meiosis to form egg
-Egg forms graffian follicle
-Egg is released on day 14
-Remains of GF stay and form corpus luteum
