Maternal Anatomy Flashcards
Nerves of the Vagina
Upper 2/3
Lower 1/3
S: Hypogastric P:S2-S4 (cervical ganglion of Frankenhauser)
Pudendal nerve
Blood supply of the vagina
Upper 1/3
Mid
Lower
Cervicovaginal branch of uterine artery
Inferior vesical
Mid rectal and internal pudendal
Lymphatics of the Vagina
Upper 2/3
Lower 1/3
External and internal iliac nodes
Inguinal nodes
Perineum
Ant/urogenital triangle
LUTS and hematomas
Ant pubic symphisis
Ant lateral ischiopubic rabi and ischial tuberosity
Post lateral sacrotuberous ligaments
Post coccyx
Perineum
Post/anal triangle
Painful defecation
Internal pudendal vessels and nerve
Ischiorectal fossa, anal complex, anal sphincter complex
Ant superficial space
Closed compartment
Ischiocavernosus clitoral erection
Bulbocavernosus Bartholin gland secretion and clitoral erection
Sup transverse perineal muscle perineal body
Ant deep space
Continuous space with pelvis
Compressor urethrae
Urethrovaginal sphincter
External urethral sphincter
Pudendal nerve
Dorsal nerve of the clitoris - skin of clitoris
Perineal nerve - muscle of ant triangle and labial skin
Inferior rectal nerve - ext anal sphincter, mucous membrane of anal canal, perianal skin
Landmark for pudendal nerve block
Ischial spine
Endometrial layers
Stratum functionale shed spiral arteries sup 2/3 hormone sensitive
Stratum basale straight arteries
T or F
Endocervix is hormone sensitive
Exocervix
Uterus: Ligaments
Two wing like structures from lateral uterus to pelvic walls
Divide pelvic cavity to ant and post
Broad ligament
Broad ligament contains
Fallopian tubes and ovaries
Uterine and ovarian arteries
Ovarian and round ligament
Uterus: Ligaments
Continuous with broad ligament outward and downward terminating at upper portion of labium majus
Round ligament
Uterus: Ligaments
From densest portion of broad ligament
Major support of uterus and cervix
Cardinal ligament
Uterus: Ligaments
Encircles rectum
Uterosacral ligament
Long axis of uterus in relation to long axis of vagina
Version
Relation of uterine fundus to cervix
Flexion
Blood supply
Pudenda
Int pudendal artery
Blood supply
Vagina
Vaginal artery of uterine artery
Blood supply
Cervix
Cervicovaginal supply of the uterine atery
Blood supply
Uterus
Uterine artery
Blood supply
Fallopian tubes and ovaries
Ovarian artery
Fallopian tube
Narrowest
Most highly developed musculature
Isthmus
Fallopian tube
Widest
Site of fertilization
80% of ectopic pregnancy
Ampulla
Damage to nerves
Radical hysterectomy
Genitofemoral perineal anesthesia
Obturator adduction of thigh, med thigh
Damage to nerves
Improper placement of stirrups
Prolonged dorsal lithotomy
Peroneal footdrop
Damage to nerves
Lateral blade of self retaining retractor
Inguinal node dissection
Femoral nerve hip flexion
Damage to nerves
Obturator node dissection
Obturator nerve
Ext iliac artery
Damage
Straddle
Anesthetic for second stage of labor
Pudendal artery hematoma
Dorsal lithotomy
Upward gliding of sacroiliac joint
Outlet increase by 2 cm
Pelvic inlet
True conjugate
Obstetric conjugate
Diagonal conjugate
11 cm
DC-1.5=10
11.5 clinical
Assessment of midpelvis
Blunt ischial spine
Parallel sidewalls
Wide sacrum
Wide sacroiliac notch
Midpelvis
Interspinous diamter
10 cm
Pelvic outlet
Intertuberous diameter
8 cm
Dictates pelvic tendency
Dictates pelvic type
Ant
Post
Round shape
Straight sidewalls
Non prominent ischial spines
Gynecoid
Heart shaped
Convergent sidewalls
Prominent spines
Deep transverse arrest
Android
Vertically oriented iv Convergent sidewalls Prominent spines Deep sacrum Face delivery
Anthropoid
Horizontally oriented oval
Divergent then convergent sidewalls
Nonprominent spines
Short AP diameter
Platypelloid
Ape like pelvis
Android
No difficulties in vaginal birth
Gynecoid
Platypelloid
Levator ani
Pubococcygeus
Puborectalis
Ileococcygeus
Pelvic diaphragm
Levator ani
Coccygeus
Mullerian duct
Females
Fallopian tubes to upper 1/4 vagina
Males
Appendix testes
Urogenital sinus
F lower 3/4 vagina vestibule bladder urethra
M bladder prostatic and membranous urethra
Mesonephric/Wollfian duct
F Gartner’s lateral vaginal wall
M epidydimis vas deferens seminal vesicle ejaculatory duct
Labioscrotal swelling
Labia majora
Scrotum
Urogenital folds
Labia minora
Ventral penis
Genital tubercle
Clitoris
Penis
Metanephric duct
Ureter
Renal pelvis
Calyces
Collecting system
Metanephric mesenchyme
Glomerulus
Renal collecting tubules
