[ANAT] UTERUS & VAGINA Flashcards
fornices of vagina (4)
anterior
posterior
2 lateral
shallowest fornix
anterior
deepest fornix
posterior
only fornix covered by peritoneum
posterior
fornix giving attachment to mackenrodt’s ligament
lateral
which is longer:
anterior wall or posterior wall of vaginal cavity
posterior (9cm)
vaginal orifice is partially enclosed by
hymen
anterior relation of vagina
urethra (embedded in its ant wall)
base of bladder
posterior relations of vagina
lower 1/4: anal canal & perineal body
middle 2/4: rectum & loose fibro-areolar tissue
upper 1/4: rectum & rectovaginal pouch
lateral relations of vagina
lower pt: bartholins’ glands, bulbs of vestibule, urogenital diaphragm
middle pt: constrictor vaginae (levator ani)
upper pt: mackenrodt’s ligament
vagina arterial blood supply (4)
vaginal br of uterine artery
vaginal artery
middle rectal artery
internal pudendal artery
ant & post midline azygous arteries are formed by
vaginal branches of uterine artery
vaginal artery
vagina venous drainage
vaginal veins—>internal iliac veins
vaginal lymphatic drainage below hymen
superficial inguinal LNs
vaginal lymphatic drainage above hymen
external & internal iliac LNs
uterus site
b/w urinary bladder & rectum
uterus shape
pear shaped
apex: inferiorly
base: superiorly
uterus normal position
anteverted-anteflexed (AVF) w/ empty bladder
anteversion angle
angle b/w uterus & vagina axes
90°
anteflexion angle
angle b/w uterus & cervix axes
170°
retroverted uterus
axes of uterus & vagina are in ALIGNMENT
retroverted uterus position can lead to
prolapsed uterus in old multiparous women–> difficulties getting pregnant
fundus of uterus is related to
coils of ileum
sigmoid colon
part of uterus fully covered by peritoneum
fundus
anterior surface of uterus is covered by peritoneum till
internal os
anterior surface of uterus is related to
urinary bladder w/ uterovesical pouch in between
posterior surface of uterus is covered by peritoneum till
cervix & posterior fornix
posterior surface of uterus is related to
sigmoid colon
terminal ileum
upper ends of lateral border of uterus are an entry site of
uterine tube
upper ends of lateral border of uterus are an attachment site to
round ligament of uterus (antero-inferiorly)
ligament of ovary (postero-inferiorly)
uterine tube & round ligaments of ovary and uterus run in
broad ligament
broad ligament extends from
lateral pelvic wall to lateral uterine border
artery ascending along lateral borders of uterus
uterine artery (tortuous course)
most fixed part of uterus
cervix
uterine artery crosses ureter____
2cm from cervix
vagina is divided into 4 fornices by
vaginal part of cervix