LAB 8- Reproductive System Flashcards
fertilization of ovum by sperm
sperm (gamte) attaches to ovum
Chromosomal Sex Determination
xx- female
xy-male
3 parts of the urethra
- prostatic
2.membranous
3.penile urethra (spongy)
what does the scrotum do
protects testes
spermatic cord contains
vesslels
how is semem formed in testses
in the seminiferous
travels to rete tesis
then into efferent ductule
down the tail of epididymis
up the ductus deferens
in the spermatic cord
how does semen come out
from the testes then
up the ductus deferens
into the ampulla ductus deferens
through the ejaculatroy duct passing the prostate and into the urethra
two outside layers of testes
-called tunica vaginalis with a cavity between
inside layer of testes
tunica albuginea
its important for the testes to maintain
temp
-2 degrees less then body 37
-right testes lower
what does the nurse cell do in the testes
provides nutrients, growth factors, and hormones that regulate sperm production
three male glands and its function
seminal- 2, gives 65-75% semen, fructose (energy), prostaglandins
prostate- 1, 25-30% semen, citric acid (ATP), proteolytic enzymes, helps with fertilization, plasmids, neutralize bacteria
-bulbourethral- pre ejaculate, lubrication, neutralizing acidity
three inner parts of the penis
- 2 circles, corpus cavernosum above
-1 below with urethra, corpus spongiosum
name for all external parts of the vagina
vulva (labia, clitoris,hymen etc)
the uterine tube (hand) can also be called
fallopian
what layer of the uterus sheds during menstrual month
-endometrium
what wraps around the uterus like a blanket
broad ligament
three parts that make up the fallopian
-infundibulum
-ampulla (most common fertal site)
-isthmus
Homologous Structures and function
M- testes, F- ovaries= produce gamates
M-prostate ,F- Skenes gland = ejac fluid and sensation
M-bulbourethral , F-bartholins = lubrication
M-scrotum, F-labia majora= support/protection
M-glans penis, F-clitoris= erectile tissue and sensation
M-foreskin, F- clitoral hood= support/protection
during pregnancy women develop ___ in breasts
-prolactin (milk) goes out of nipple from oxytocin which causes contraction
comparison of normal women vs pregnant women internal organs
pregnant:
-uterus enlarges and pushes organs above
-forms placenta and umbilical cord
primary and secondary sex organs
-primary- organs that produce gonads
secondary- organs needed for reproduction eg penis and vagina
at 6 weeks of developments, women and male identification is not present, why?
only has genital tubercle, urogenital fold, and labioscrotal fold until 8 weeks then develops male or female characteristics
