ORG ANA: Pelvic Wall Flashcards

(100 cards)

1
Q

describe the shape of the pelvis

A

bowl-shaped or basin shaped

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2
Q

what does the pelvis connect

A

connection between abdomen/trunk and LE

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3
Q

what are the 3 main functions of the pelvis

A

transmits weight of body from VC to femurs

support and protect pelvic viscera

attachment for trunk and LE muscles

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4
Q

what does the pelvis contain

A

lower GI and urinary tract

organs of reproduction

nerves, vessels and lymphatics

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5
Q

what is the lateral and anterior wall of the pelvis and its articulations

A

the 2 hip bones

in front - symhpysis pubis
post - sacroiliac joint

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6
Q

what is the posterior wall of the pelvis

A

sacrum and coccyx

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7
Q

what are the 2 parts of the pelvis

A

false and true pelvis

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8
Q

what is the pelvic brim

A

it marks the boundary between the true and false pelvis

above it - false
below it - true

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9
Q

what makes up the pelvic brim

A

ant - symphysis pubis
post - sacral promontory
lat - iliopectineal lines

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10
Q

what is the sacral promontory

A

anterior upper margin of S1

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11
Q

what are iliopectineal lines

A

lines that run downward and forward in the inner surface of the ileum

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12
Q

what is the symphysis pubis

A

joint betw the 2 pubic bones

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13
Q

describe the location of symphysis pubis and ASIS

A

they lie in the same vertical plane

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14
Q

pelvic orientation of symphysis pubis

A

faces upward and backward

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15
Q

pelvic orientation of the sacrum

A

directed downward forward

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16
Q

boundaries of the false pelvis

A

ant - lower abdominal muscles
post - 5 lumbar vertebrae
lat - iliac fossa and iliacus

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17
Q

the false pelvis is considered a part of ______ cavity

A

abdominal cavity

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18
Q

purpose of false pelvis

A

supports abdominal content

guides fetus to true pelvis at early stages

supports uterus at 3 months above

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19
Q

what makes up the true pelvis

A

pelvic inlet, outlet and cavity

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20
Q

what are the boundaries of pelvic outlet

A

ant - pubic arch
post - coccyx
lat - ischial tuberosities
margin - sarcotuberous ligament

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21
Q

what are the 3 wide notches of the pelvic outlet

A

ant - pubic arch
lat - sciatic notches; lesser and greater

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22
Q

what divides the sciatic notches

A

divided by sarcotuberous and sacrospinous ligaments into greater and lesser foramen

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23
Q

where is the pelvic cavity located

A

between inlet and outlet

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24
Q

what are the contents of the pelvic cavity

A

lower portion of intestines and rectum

urinary bladder

internal reproductive organs

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25
what forms the anterior wall of true pelvis
bodies of pubic bone, pubic rami and symphysis pubis
26
it has the shallowest wall in true pelvis
anterior wall
27
it has extensive wall in true pelvis
posterior wall
28
what forms the posterior wall of true pelvis
sacrum, coccyx and piriformis
29
what covers the posterior wall of true pelvis
parietal pelvic fascia
30
openings of the posterior wall of true pelvis
anterior sacral foramina greater and lesser sciatic foramen
31
what passes through the anterior sacral foramina
anterior rami of sacral spinal nerves
32
what passes through greater sciatic foramen
exit from true pelvis to gluteal region for sciatic, pudendal, gluteal nerves/vessels
33
what forms the lateral wall of pelvis
hip bone below pelvic inlet obturator membrane sarcotuberous ligament and sacrospinous ligament obturator internus and fascia
34
opening of lateral wall
obturator foramen
35
what covers the obturator foramen
obturator membrane
36
what are the contents of the obturator foramen
passage of obturator nerve to leave pelvis and enter thigh
37
what forms the inferior wall
formed by pelvic diaphragm
38
function of pelvic diaphragm
divides true pelvis into main cavity and perineum
39
function of inferior wall
supports the pelvic viscera
40
identify the type of pelvis most common type - 41%
gynecoid
41
identify the type of pelvis classical female pelvis
gynecoid
42
identify the type of pelvis oval at inlet, generous capacity and wide subpubic arch
gynecoid
43
identify the type of pelvis least common type - 2%
platypelloid
44
identify the type of pelvis flattened at inlet and has a prominent sacrum
platypelloid
45
identify the type of pelvis subpubic arch is wide but ischial spines are prominent
platypelloid
46
identify the type of pelvis favors transverse presentations
platypelloid
47
identify the type of pelvis occurs 24% in white and 41% in black women - 2nd most common
anthropoid
48
identify the type of pelvis oval at inlet but narrow and has a long axis; subpubic arch is slightly narrowed
anthropoid
49
identify the type of pelvis favors occiput posterior presentations
anthropoid
50
identify the type of pelvis 33% of white and 16% of black females - 3rd most common
android
51
identify the type of pelvis triangular inlet and narrowed subpubic arch
android
52
identify the type of pelvis aka male or funnel shaped pelvis
android
53
relate delivery to an android pelvis
larger babies have hard time bcs of bony prominence kase funnel shaped but smaller can squeeze through
54
what makes up the pelvic diaphragm
levatores ani and occygeous muscles and their fascia
55
why is the pelvic diaphragm incomplete anteriorly
allows passage of urethra in males and urethra and vagina in females
56
location of anterior fibers of levator ani
forms a sling around the prostate or vagina
57
function of anterior fibers of levator ani
support prostate, constricts vagina and stabilizes perineal body
58
location of puborectalis fibers of levator ani
sling around rectum and anal canal
59
function of puborectalis fibers of levator ani
sphincter for poop
60
intermediate fibers of levator ani
puborectalis and pubococcygeous
61
location of posterior fibers of levator ani
iliococcygeus is from iluem to coccyx
62
action of levator ani
form muscle sling that supports and maintains pelvic viscera in positions resist rise in intrapelvic pressure - resist GI organs in reaching pelvis sphincter action
63
nerve supply of levator ani
perineal branch of 4th sacral nerve and perineal branch of pudendal
64
it is continous with fascia of abdomen and perineum
pelvic fascia
65
what does parietal pelvic fascia line
lines walls of pelvis
66
what does visceral layer of pelvic fascia lines
covers and supports pelvic viscera
67
where is the sacral plexus found
in front of piriformis in posterior pelvic wall
68
what forms the sacral plexus
anterior rami of L4, L5, S1-S4
69
branches of sacral plexus
sciatic superior and inferior gluteal nerve to quad fem nerve to obturator internus posterior cutaneous nerve of thigh pudendal nerve to piriformis
70
arteries that enter the pelvic cavity
internal iliac superior rectal - inferior mesenteric ovarian - aorta median sacral - aorta
71
what does internal iliac artery supply
all organs within pelvis
72
anterior divisions of internal iliac artery
umbilical vaginal or inferior vesical middle rectal uterine obturator internal pudendal inferior gluteal
73
what does umbilical artery supply
branches to superior vesical and supplies upper part of bladder
74
what does vaginal artery supply
vagina and base of bladder
75
what does inferior vesical artery supply
base of bladder prostate and seminal vesicles
76
what does middle rectal artery supply
lower rectum
77
what does uterine artery supply
uterine tube
78
posterior branches of internal iliac artery
iliolumbar lateral sacral superior gluteal MGA WALA NA SA PELVIS
79
what does iliolumbar artery supply
pass laterally to supply pelvic inlet, psoas and iliacus
80
what does lateral sacral artery supply
sacrum before terminating as posterior gluteal artery
81
what does superior gluteal artery supply
gluteal region
82
what does superior rectal artery supply
rectum and upper half of anal canal
83
what does ovarian artery supply
supply ovary vesticular artery in males - supply testes
84
what does median sacral artery supply
anterior surface of sacrum and coccyx
85
what does external iliac vein drain
posterior gluts and legs
86
what does interal iliac vein drain
pelvis mga uterine ganun
87
what does median sacral vein drain
sacrum
88
lymphatics of pelvis
external iliac, internal ilaic and common iliac nodes
89
identify if male or female pelvis false pelvis is deeper
male
90
identify if male or female pelvis false pelvis is shallower
female
91
identify if male or female pelvis pelvic inlet is heart shaped
male
92
identify if male or female pelvis pelvic inlet is oval and narrow transversely
female
93
identify if male or female pelvis pelvic outlet is smaller and narrower
male
94
identify if male or female pelvis pelvic outlet is larger and roomier
female
95
identify if male or female pelvis ischial spine is inverted
male
96
identify if male or female pelvis ischial spine is everted
female
97
identify if male or female pelvis pubic arch is narrower
male
98
identify if male or female pelvis pubic arch is more rounded and wider
female
99
identify if male or female pelvis sacrum is long and narrow
male
100
identify if male or female pelvis sacrum is short, wide and flat
female