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pelvis anatomy > pelvis anat > Flashcards

pelvis anat Flashcards

1
Q

pelvic diaphragm

A 
levator ani (anterior + major)
coccygeus (posterior + minor)
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2
Q

structures found on lateral wall of the pelvis

A

obturator internus
obturator veins
ovaries

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3
Q

posterior wall of the pelvis

A 
piriformis muscle
sacral plexus (ant to piriformis) 
more anterior: divisions of internal iliac artery
- posterior 
- anterior: pelvic viscera
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4
Q

midline area of the pelvis

A

viscera: male: bladder + rectum
female: bladder, rectus, uterus/uterine tubes

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5
Q

structures in the pelvis extra or intra peritoneal?

A

extra

outside of the peritoneum

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6
Q

uterus parts?

A

fundus
body
cervix

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7
Q

supporting structures of the uterus?

A 
levator ani 
fascial ligaments:
- sacrocervical lig 
- pubocervical
- lateral cervical lig
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8
Q

false pelvis

A

extension of abdomen

between iliac bones

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9
Q

true pelvis

boundaries

A

begins at the pelvic inlet/brim

inferiorly: pelvic diaphragm

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10
Q

below the true pelvis

A

perineum - external genitalia

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11
Q

boundaries of inlet

A

sacral promontory, pubic symphysis

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12
Q

pelvis outlet boundaries?

A

pubic arch
ischial tuberosities
inferior ramus
sacrotuberous ligs

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13
Q

differences between male and female pelvis

A

pubic arch

sacral promontory

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14
Q

sacroiliac ligs?

A

sacroiliac lig anterior and posterior

- fibrous ligaments between

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15
Q

sacroiliac joints

A

synovial plane joint (BUT ALSO interosseous/fibrous joint )

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16
Q

bony ligs

function?

A

sacrospinous
sacrotuberous

form greater and lesser sciatic foramina

prevent upward tilting of pelvis + support

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17
Q

Route of which nerve + why? out greater sciatic foramen and into lesser sciatic foramen?

A

pudendal nerve
in order to access the perineum

doesn’t pierce levator ani which can impinge on it

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18
Q

difference between
mid inguinal point
midpoint of inguinal ligament?

A

mid point of inguinal ligament (between asis + pubic tubercle)
- then palpate femoral pulse

other between asis + pubic symphysis

19
Q

fascial ligs of pelvis
list but don’t know where they are
all supporting uterus
in addition to the lev ani

A

pubocervical (anterior)
transcervical (side wall)
sacrocervical (posterior)

20
Q

coccygeus muscle attachments

A

attaches to coccyx bone

21
Q

levator ani?

parts

A

puborectalis/pubo rectal sling (holds it forward)

pubic bone –> coccyx: pubococcygeus

iliococcygeus

22
Q

sphincters around the anus

A

external - voluntary
internal - involuntary

beneath skin: subcutaneous sphincter

23
Q

ureter + uterine vessels found?

A

pelvic floor

24
Q

ureter + uterine vessels relation

A

ureters pass deep to uterine vessels

water under the bridge

25
Q

complication of hysterectomy?

A

damage to ureter when clamping uterine vessels

26
Q

pelvic lateral wall

A

obturator internus

27
Q

origin of levator ani

A

levator ani originates from fascia of obturator internus –> tendinous arc

28
Q

obturator nerve origin

A

L2-L4

29
Q

femoral nerve origin

A

L2-L4

30
Q

obturator artery branches off of…

obturator vein drains to …

A

internal iliac artery

internal iliac vein

31
Q

pudendal nerve - accompanied by

A

internal pudendal artery + vein

drains into /branches from/ internal iliac

32
Q

pudendal nerve roots

A

S2,3,4

33
Q

layers

A

bone - sacrum
muscle - piriformis
nerves - sacral plexus
vessels

34
Q

retropubic space

A

suprapubic catheter - into the bladder without piercing peritoneum
- just above pubic symphysis

its extraperitoneal

35
Q

perineum divided into

A

urogenital triangle

anal triangle

36
Q

innervation of perineum

A

pudendal nerve S2-S4

37
Q

superificial perineal pouch

A

external genitalia, vulva, vagina, etc etc

between inferior fascial layer of the urogenital diaphragm to the skin

38
Q

deep perineal pouch

A

inferior (perineal membrane) and superior fascia of the urogenital diaphragm

potential space - filled with muscle

39
Q

anal triangle holds

A

ischitana fossa - susceptible to cysts and abscesses - fat filled space

40
Q

nerves within ischianal fossa

A

inferior retal/anal nerves from pudendal nerve

41
Q

removal of cysts in ischioanal fossa complication

A

damage of nerves:

faecally incontinent

42
Q

vestibule

A

cleft like space/ structure between the labia minora

the vaginal tubes + urethra opens into it

43
Q

tear of primal body

episiotomy

A

superficial and transverse perineal muscles can be dislodged - incontinence

44
Q

urogenital diaphragm muscles

A

deep and superficial transverse perineal muscles and sphincter urethrae

pelvis anatomy (1 decks)

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