Anatomy of the Lateral Pelvic Wall and a Pelvic Mass Flashcards

1
Q

what does the obturator internus touch?

A

obturator membrane

superior pubic ramus

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2
Q

where is the obturator foramen located?

A

opening between the ischium and pubic bones

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3
Q

what is deep to the levator ani?

A

ischioanal fossa

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4
Q

what muscle covers the sacrospinous ligament?

A

coccygeus

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5
Q

what muscle splits the greater sciatic foramen in 2 parts?

A

piriformis

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6
Q

majority of pelvic and perineal arteries arise from what artery?

A

internal iliac artery

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7
Q

what arteries do NOT arise from the internal iliac artery?

A

gonadal artery

superior rectal artery

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8
Q

superior rectal artery arises from what artery?

A

it’s a continuation of the inferior mesenteric

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9
Q

the gonadal artery arises from what level of the abdo aorta?

A

L2

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10
Q

what covers the obturator foramen?

A

obturator membrane

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11
Q

middle and inferior rectal veins drain more into the portal/caval system

A

caval

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12
Q

superior rectal veins drain more into the portal/caval system

A

portal

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13
Q

what arteries make up the posterior division of the pelvic arterial supply?

A
PILS
posterior
iliolumbar
lateral sacral
superior gluteal
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14
Q

the gluteal arteries are split by what muscle?

A

piriformis

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15
Q

what artery makes up the “circle of death” in hernia repairs?

A

a pubic branch of the inferior epigastric artery that anastamoses with the obturator artery

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16
Q

name the structures that make up the lateral, medial and median umbilical folds

A

lateral - inf epigastric vessels
medial - remnant of umbilical artery
median - urachus

17
Q

the perineal artery of the male forms what artery?

A

continues to become the posterior scrotal artery

18
Q

the internal pudental artery gives off what branches in men?

A

perineal artery
dorsal artery of penis
deep artery

19
Q

anterior scrotal artery is a branch of…

A

external pudental artery (branch of femoral)

20
Q

what artery of the male pelvis (NOT perineum) is not present in the female

A

inferior vesical artery (replaced by cervical artery)

21
Q

what arteries of the female pelvis (NOT perineum) are not present in the male

A

vaginal

uterine

22
Q

the vaginal artery is a branch of…

A

uterine artery

23
Q

name the arterial anastamoses present in the female pelvis?

A

uterine artery and ovarian artery

uterine artery and vaginal artery

24
Q

name the 2 branches of the ovarian artery

A

tubal

ovarian

25
Q

the uterine artery runs adjacent/parallel to the ureter

A

adjacent NB water under the bridge

26
Q

the vaginal artery runs adjacent/parallel to the ureter

A

parallel

27
Q

main artery to the clitoris

A

dorsal artery of the clitoris

28
Q

what artery supplies the branches to the female perineum? what are these branches?

A

internal pudental artery;
inferior rectal
perineal -> labial
dorsal artery of clitoris

29
Q

main venous drainage of the pelvis?

A

internal iliac vein from various venous plexuses

30
Q

sciatic nerve exits below what muscle?

A

piriformis

31
Q

what pelvic lymph node groups form a T shape? what way do they lie

A

superfical inguinal - horizontal

deep inguinal - vertical

32
Q

primary lymphatic drainage of the superior pelvic viscera (above pelvic pain line)

A

external iliac nodes

33
Q

primary lymphatic drainage of the inferior pelvic viscera (below pelvic pain line)

A

internal iliac nodes

34
Q

primary lymphatic drainage of the superficial perineum

A

superficial inguinal nodes

35
Q

describe the route from the inguinal nodes up the lymphatic system

A

to common iliac -> aortic -> thoracic duct -> venous system