Class 1 - Station 3 Flashcards
which organs of the pelvis aren’t supplied by branches of internal iliac arteries
ovaries/testes and upper part of rectum
origin of superior rectal artery
IMA
origin of gonadal artery (ovaries and testes)
abdominal aorta
artery which supplies the bladder and seminal gland and prostate in males
superior and inferior vesical
level of common iliac bifurcation
L5/S1
origin of middle and inferior rectal artieries
internal iliac
what does the vaginal artery supply and what is it a branch of
vagina and uterine artery
supply and origin of uterine artery
uterus, ureters, uterine tube and ligament, vagina
comes from internal iliac
supply and origin of obturator artery
pelvic muscles, femur head and ilium
comes from internal iliac
5 veins of pelvis
internal iliac, superior rectal, median sacral, gonadal and internal vertebral venous plexus
which part of the rectum drains into the IMV
superior 2/3
which part of the rectum drains into the systemic circulation
lower 1/3
why are haemorrhoids associated with liver cirrhosis
liver cirrhosis –> portal hypertension –> rectal varices –> haemorrhoids
what venous plexus does the prostatic venous plexus communicate with on its posterior side
internal vertebral venous plexus
clinical significance of prostatic venous drainage
spread of prostate cancer
what nerve produces the cremastic reflex
genital branch of genito-femoral nerve (L1-L2)
where does the genito-femoral nerve (L1-L2) enter the pelvis through
deep inguinal ring
structures innervated by genital branch of genito-femoral nerve (L1-L2)
scrotum and cremaster muscle
how is the cremastic reflex elliceted
lightly stroking the inner thigh
roots of pudendal nerve
S2-4
what bony landmark is palpated to find the pudendal nerve and give a nerve block
ischial spine
which nerve enters the pelvis at the superficial inguinal ring
ilioinguinal nerve
what nerve supplies the skin at the root of the penis/labia
ilioinguinal nerve
roots of ilioinguinal nerve
L1
what kind of nerve fibres innervate the erectile tissues, sympathetic or parasympathetic
parasympathetic (S2,3,4)
through what plexus do parasympathetic fibres innervated the erectile tissues
hypogastric plexus
nerve supply of vas deferens, seminal vesicles, prostate and epididymis
sympathetic fibres of L1 and L2 via hypogastric plexus
what name is given to the pelvic and ovarian plexuses and some parasympathetic fibres that form to supply the femal genital tract
pelvic splanchnic nerves (S2,3,4)
erectile tissues
corpora cavernosa and corpus spongiosum
why might a man be unable to ejaculate after rectal surgery
damage to prostatic plexus
4 pelvic lymph node groups
external iliac
internal iliac
sacral
common iliac
what does the common iliac lymph node group drain from
the 3 other groups
drainage of external iliac lymph nodes
inguinal nodes, superior and anterior pelvic viscera
drainage of internal iliac lymph nodes
bum, perineum and inferior pelvic viscera
drainage of sacral lymph nodes
posterior and inferior pelvic viscera
