Reproductive Anatomy Flashcards
5 layers of penis (from superficial to deep)
- outer dermis
- Superficial (dartos) fascia
- deep (Buck’s) fascia
- tunica albuginea (encases erectile tissue and separates corpora cavernosa from corpora spongisum)
5 urethra
what structure does the male urethra run through
corpus spongiosum
pathway of sperm during ejaculation (6)
- Seminiferous tubules
- Epididymis
- Vas deferens
- Ejaculatory ducts
- Urethra
- Penis
which nerve is responsible for erection? what branch of NS
Pelvic n.–> parasympathetic
what substance is proerectile? which is antierectile?
- NO–> increases cGMP –> SM relaxation and vasodilation
2. NE–> increases intracell Ca–> SM contraction/ vasoconstriction
what is emission
when sperm moves from testes to prostatic urethra to mix with seminal fluid
what nerve is responsible for emission? branch of NS
- hypogastric n.–> sympathetic
what nerve responsible for ejaculation/ what branch of NS
- Pudendal n.–> visceral and somatic nerves
connects cervix to side wall of pelvis
Cardinal ligament
connects ovaries to lateral pelvic wall
suspensory ligament of ovaries (infundibulopelvic ligament)
contains ovaries, fallopian tubes, and round ligament of ovaries
Broad ligament
connects medial pole of ovary to lateral uterus
Ligament of the ovary
contains ovarian vessels
Suspensory ligament of the ovaries (infundibulopelvic ligament)
contains uterine vessels
Cardinal ligament
3 pudendal nerve branches
- inferior rectal nerve
- Dorsal nerve of penis (or clitoris)
- Perineal nerves
perineal nerves give rise to
posterior scrotal or posterior labial nerves
ovaries and testis drain to what lymph nodes
para-aortic
distal 1/3 of vagina/ vulva/ scrotum drain to what nodes
superficial inguinal nodes
proximal 2/3 of vagina/uterus drain to what nodes (imp; where vaginal or ovarian cancer would met)
- obturator
- external iliac
- hypogastric nodes
*these not palpable
left ovary/testis drain to what vein
left gonadal vein–> left renal vein
right ovary/ testis drain to what vein
right gonadal vein–> IVC
what side is varicocele more common on and why
left–> venous pressure is higher due to the 90 degree angle the left gonadal vein connects to the left renal vein with
vagina has what kind of tissue
stratified squamous, non keratizined
ectocervix has what kind of tissue
stratified squamous
endocervix has what kind of tissue
simple columnar
uterus has what kind of tissue
simple columnar, pseudostratified tubular glands
fallopian tube has what kind of tissue
simple columnar, ciliated
ovary has what kind of tissue
simple cuboidal
what landmark is palpated for when giving pudendal nerve block in labor
ischial spine–> pudendal nerve runs right by it after coming out form underneath sacrospinous ligament
