Anatomy Practical Flashcards
Tissue levels from scrotum to artery/vein/nerves of testicles
Scrotum –> Dartos fascia –> external spermatic fascia –> Cremaster muscle/fascia –> Internal spermatic fascia
Pudendal nerve origin and travel
Originates S2-S4
Travels out greater sciatic notch superior to piriformis –> back through lesser sciatic notch –> Enters pudendal canal
Pudendal nerve brances
Inferior rectal nerve
Perineal nerve
Dorsal nerve of penis/clitoris
Inferior rectal nerve
Arises from pudendal nerve
Supplies sympathetic innervation to rectum inferior to pectinate line
Pain sensations associated with external hemorrhoids
Perineal nerve
Divides into superficial branch and deep branch
Superficial branch supplies innervation to posterior scrotal and labia majora
Deep branch provides innervation to muscles of perineum - ischiocavernosus, bulbospongiosum, levator ani
Pelvic splanchnic nerves
Parasympathetic nerves arising from ventral rami of S2-S4
Join in with inferior hypogastric plexus
Innervate pelvic viscera: Bladder control, rectum (above pectinate line), erection, internal urethral sphincter
Obturator artery
Arises from internal iliac artery
Exits pelvis via obturator canal
Supplies obturator internus muscle and part of thiggh
Umbilical artery
Arises from internal iliac artery
Branches into superior vesical artery
Superior vesical artery
Arises from umbilical artery and supplies upper portion of bladder
Deep dorsal vein of penis
Midline vein
Drains to prostatic venous plexus
Dorsal artery of penis
Terminal branch of pudendal artery
Dorsal nerve of penis
Branch of internal pudendal nerve
Superficial dorsal vein
Drains to superficial external pudendal vein
Ilioinguinal nerve
Anterior scrotal/labial nerve
Genitofemoral nerve
Genital branch - anterior scrotal/labial
Inferior cluneal nerve
Inferior buttock and gluteal fold
Contents of deep perineal pouch
Membranous urethra External urethral sphincter Bulbourethral glands Dorsal artery/nerve of penis Deep transverse perineal muscle
Labium majora/scrotal lymph nodes
Superficial inguinal lymph nodes
Contents of superficial perineal pouch
Bulb of penis and bulbospongiosum
Crura of penis and ischiocavernosum
Superficial transverse perineal muscle
Internal pudendal nerve/artery
Proximal part of spongy urethra
Contents of spermatic cord
Testicular artery, cremasteric artery
Rectum lymph nodes superior to pectinate line
Internal iliac
Rectum lymph nodes inferior to pectinate line
Superficial inguinal nodes
External anal sphincter innervation
Inferior rectal nerve
Sites of kidney stones
Ureteropelvic
Pelvic Brim
Ureterovesical
Anterior branches of internal iliac
Inferior gluteal Obturator Middle rectal Pudendal Umbilical Superior vesical Inferior rectal
Suspensory ligament of ovary
Attach ovary to posterior wall
Contains ovarian vessels
Round ligament of uterus
Form from gubernaculum
Passes through deep inguinal ring, attaches labia majora
Pudendal nerve block location
Ischial spine
Cremaster muscle innervation
Genital branch of genitofemoral nerve
Cremasteric reflex
Stroke medial thigh and testes rise
Right testicular vein drainage
IVC
Left testicular vein drainage
Left renal vein
Origin of testicular and ovarian arteries
Aorta
Testis referred pain
T10-11
Lower back
Testes/ovarian lymphatic drainage
Lumbar lymphatics
