Exam 4: Pelvis And Rectum Flashcards
Abdominal aorta bifurcates into
L and R common iliac arteries
Branches of external iliac artery
Deep circumflex iliac
Inferior epigastric
External iliac A continues as
Femoral artery
Internal iliac artery is crossed by
Ureter at pelvic brim
Branches of posterior trunk in internal ilial A
Iliolumbar A
Lateral sacral A
Superior gluteal A
Inferior gluteal A is branch of what trunk of internal iliac A
Anterior trunk
Internal pudendal A is branch of what trunk of internal iliacA
Anterior trunk
Umbilical A gives off what arteries
Superior vesical arteries
Distal portion of umbilical A is
Obliterated
Continues forward as medial umbilical lig
Uterine artery is homologous to
Artery of ductus deferens
Internal iliac A is the major blood supplier to pelvis
NOT the only
Gonadal, superior rectal and medial sacral A
Most pelvic structures drain into
Caval system
Rectum and anal canal have some portal drainage
L and R common iliac V unite to form
Inferior vena cava
Sacral plexus formed by
Lumbosacral trunk
Anterior primary rami of S1-4
Superior gluteal N exits pelvis through
Greater sciatic foramen
SUPERIOR to piriformis
Superior gluteal N supplies
Gluteus medius and minimus
Tensor fascia latae
Inferior gluteal N exits pelvis through
Greater sciatic foramen
Inferior to piriformis
Inferior gluteal N supplies
Gluteus maximus
What nerve functions in trunk control and standing from seated position
Inferior gluteal N
Largest N in body
Sciatic N
N to obturator internus muscle supplies
Obturator internus and superior gemellus
N to quadratus femoris muscle supplies
Quadratus femoris and inferior gemellus muscles
Posterior cutaneous N of thigh supplies
Sensory to part of gluteal region and perineum
Compromise of N to piriformis muscle results in
Piriformis syndrome
Compromise of N to levator ani and coccygeus muscles causes
Problems in pelvic floor integrity, parturition, incontinence
Compromise in N to external anal sphincter causes
Fecal incontinence
Compromise of pudendal N causes
Sexual dysfunction
Coccygeal plexus formed by
Ventral rami of S4 and S5 and coccygeal N
L and R sympathetic trunks join together to form
Ganglion impar
In front of coccyx
Superior hypogastric plexus contains what fibers type
Sympathetic fibers
Visceral afferent
L and R hypogastric nerves
Connect superior and inferior hypogastric plexus
L and R inferior hypogastric plexuses formed by union of
Hypogastric
Pelvic splanchnic
Sacral splanchnic
Inferior hypogastric plexuses contain
Sympathetic
Parasympathetic
Visceral afferent
Sacral splanchnic N are
Sympathetic
Pelvic splanchnic N are
Parasympathetic
Rectosigmoid junction
Upper limit of rectum
Middle of sacrum
Anorectal junction
Lower limit of rectum
Rectum has no ____ but does have ____
Mesentery
Omental appendices
Haustra
Taeniae coli
Peritoneum of Upper third of rectum
Peritoneum covers front and sides
Peritoneum in middle third of rectum covers
Front
Peritoneum covering in lower third of rectum
NONE