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Pelvis & Perineum

Oneliners for Pelvis

QuestionAnswer
Structure that separates pelvis from perineum Pelvic diaphragm
Two major components of pelvic diaphragm Levator ani and coccygeus
Two major components of levator ani Pubococcygeus and iliococcygeus
Two muscles which close lateral pelvic wall Obturator internus and piriformis
Means by which obturator internus exits pelvis Lesser sciatic foramen
Means by which piriformis exits pelvis Greater sciatic foramen
Innervation of detrusor Pelvic splanchnics (S2-4)
Innervation of trigone Sympathetics (Pregang. T11-L2; lesser, least, lumbar splanchnic nn.)
Innervation of sphincter urethrae Pudendal n. (S 2,3,4)
Remnants of umbilical arteries Medial umbilical ligaments
Provides major vasculature to pelvic organs Internal iliac
Chief artery to rectal mucosa Superior rectal
Chief artery to rectal muscular wall Middle rectal
Most common type of pelvic inlet in females Gynecoid
Two remnants of gubernaculum in females Ovarian and round ligament
Ligament that contains ovarian vessels Suspensory ligament of ovary
Cavity into which ova immediately escape the ovary Peritoneal
Lymphatic drainage for ovary and testes Lumbar nodes (para-aortic)
Normal position of uterus Anterverted, anteflexed
Name given to orientation where uterus and vagina intersect at angle of 90 degrees Anteversion
Name given to orientation where uterine body and cervix intersect at angle of 10-15 degrees Anteflexion
Chief uterine support Pubococcygeus
Ligament that contains uterine vessels Lateral cervical
Structure potentially injured with hysterectomy Ureter
Relation of ureter to uterine artery Inferior and posterior
Structure that separates deep and superficial perineal spaces Perineal membrane
Bony landmarks between anal and UG triangles Ischial tuberosities
Structure forming lateral wall of ischioanal fossa Fascia of obturator Internus
Structure that forms the pudendal canal Fascia of obturator Internus
Structure that separates internal and external hemorrhoids Pectinate line
Lymphatic drainage for area superior to pectinate line of anal canal Internal iliac, inferior mesenteric nodes
Lymphatic drainage for area inferior to pectinate line of anal canal Superficial inguinal nodes
Lymphatic drainage for glans penis Deep inguinal nodes
Muscle which compresses the bulb of penis Bulbospongiosus
Muscle which compresses the crus of penis Ischiocavernosus
Nerves of erection Pelvic splanchnic, nervi erigentes (S 2,3,4)
Muscles which meet at the perineal body Superficial and deep perineal, bulbospongiosus, external anal sphincter, pubococcygeus
Major structure of deep perineal space Sphincter urethrae
Created by: tessah10