pelvis anat Flashcards

(44 cards)

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?

24
Q

ureter + uterine vessels relation

A

ureters pass deep to uterine vessels

water under the bridge

25
complication of hysterectomy?
damage to ureter when clamping uterine vessels
26
pelvic lateral wall
obturator internus
27
origin of levator ani
levator ani originates from fascia of obturator internus --> tendinous arc
28
obturator nerve origin
L2-L4
29
femoral nerve origin
L2-L4
30
obturator artery branches off of... | obturator vein drains to ...
internal iliac artery | internal iliac vein
31
pudendal nerve - accompanied by
internal pudendal artery + vein drains into /branches from/ internal iliac
32
pudendal nerve roots
S2,3,4
33
layers
bone - sacrum muscle - piriformis nerves - sacral plexus vessels
34
retropubic space
suprapubic catheter - into the bladder without piercing peritoneum - just above pubic symphysis its extraperitoneal
35
perineum divided into
urogenital triangle anal triangle
36
innervation of perineum
pudendal nerve S2-S4
37
superificial perineal pouch
external genitalia, vulva, vagina, etc etc between inferior fascial layer of the urogenital diaphragm to the skin
38
deep perineal pouch
inferior (perineal membrane) and superior fascia of the urogenital diaphragm potential space - filled with muscle
39
anal triangle holds
ischitana fossa - susceptible to cysts and abscesses - fat filled space
40
nerves within ischianal fossa
inferior retal/anal nerves from pudendal nerve
41
removal of cysts in ischioanal fossa complication
damage of nerves: | faecally incontinent
42
vestibule
cleft like space/ structure between the labia minora the vaginal tubes + urethra opens into it
43
tear of primal body | episiotomy
superficial and transverse perineal muscles can be dislodged - incontinence
44
urogenital diaphragm muscles
deep and superficial transverse perineal muscles and sphincter urethrae