Pelvic Structure Flashcards
1
Q
What is the false pelvis
A
Upper portion above the pelvic brim or inlet
extends from iliac crest to pelvic brim
2
Q
What is the false pelvis
A
Upper portion above the pelvic brim or inlet
extends from iliac crest to pelvic brim
3
Q
What are the 3 main structures within the true pelvis
A
bladder rectum and uterus (or prostate)
4
Q
What anchors the external genitalia
A
pelvic bone
5
Q
List examples of structures that will use the pelvis as a means of passage
A
sciatic nerve
obturator nerve
pudendal nerve
6
Q
Where is the L1 dermatome
A
suprpubic
7
Q
Where is the L2 dermatome
A
lateral thigh
8
Q
Where is the L3 dermatome
A
medial thigh
9
Q
Where is S2 dermatome
A
posterior thigh
10
Q
Where is S3 dermatome
A
perineum
11
Q
Where is S4-S5 dermatome
A
external genitalia
12
Q
What are the 4 parts of the pelvis
A
2 os coxae bones
sacrum
coccyx
13
Q
What are the 3 parts of the os coxae bones
A
ischium
ilium
pubic bone
14
Q
What are the two divisions of the pelvis
A
false pelvis
true pelvis
15
Q
What is another name for false pelvis
A
greater pelvis
16
Q
What is another name for true pelvis
A
lesser pelvis
17
Q
Where is the true pelvis located
A
between pelvic brim and pelvic diaphragm
18
Q
What structures are found within the false pelvis
A
sigmoid colon and small intestine
19
Q
What is the superior boundary of the true pelvis and what is it composed of
A
pubic symphysis
sacral promontory
linea terminalis
margin of Ala
20
Q
What are the boundaries of the pelvic outlet
A
pubic symphysis
coccyx
pubic arch
sacrotuberous ligament
21
Q
What are the 3 elements of the pelvic bone
A
ilium
ischium
pubis bones
22
Q
How is the femoral artery
A
can use pubic tubercle or ASIS
23
Q
What type of joint is the lumbosacral joint
A
2 plane synovial zygopophyseal
24
Q
What are associated structures of the lumbosacral joint
A
symphysis
IV disc
iliolumbar ligament
25
Why type of joint is the sacroiliac joint
synovial plane
26
What ligaments are associated with the sacroiliac joint
sacrospinous
sacrotuberous
anterior and posterior sacroiliac
27
What type of joint is the pubic symphysis
secondary cartilaginous
28
What ligaments are associated with the pubic symphysis
superior and inferior pubic ligament
29
What type of cartilage is found at the pubic symphysis
fibrocartilage and hyaline
30
How is the pelvis oriented in anatomic position
ASIS and pubic tubercle in line; anteriorly tilted
31
What is the function of the sacrotuberous and sacrospinous ligaments
to stabilize the sacrum and prevent upward tilting of the inferior sacrum
32
What prevents forward sliding of lumbar vertebrae on the sacrum
ileolumbar ligaments
| articular processes
33
What is the most common site of spondylolisthesis
L5-S1
34
What are the characteristics of male pelvis
heart shaped foramen
narrow angle
more prominent ischial spines
35
What are the characteristics of a female pelvis
oval shaped foramen
wider angle
not prominent ischial spines
36
What is the obstetric pelvic diameter
middle of pubic symphysis to sacral promontory
37
What is the diagonal conjugate pelvic diameter
base of pubic symphysis to sacral promontory
38
What is the anterior conjugate pelvic diameter
posterior aspect of pubic symphysis to sacral promontory
39
When will pubic symphysis have increased mobility
during pregnancy due to hormones
40
What is the interspinous diameter
distance between 2 ischial spines
41
Which diameter is the only diameter able to be measured during a pelvic exam
diagonal conjugate
42
What is an open book fracture
pubic symphysis is fractured on both sides resulting in opening of pelvis
43
How will the pelvis fracture usually
more than one area will fracture at once do to pretzel like structure
44
What composes the lateral wall of the pelvic cavity
piriformis
| obturator internus
45
What suspends the pelvic viscera
pelvic diaphragm
46
What composes the pelvic diaphragm
levator ani and coccygeus
47
What strengthens the pelvic diaphragm
kegel exercises
48
What is the anococcygeal raphe
longer section of the midline raphe behind the rectum
49
What muscles compose levator ani
puborectalis
pubococcygeus
ilealcoccygeus
50
What muscle attaches to tendinous arc of the obturator internus
iliococcygeus
51
What muscles will attach to the anococcygeal raphe
puborectalis
pubococcygeus
coccygeus
52
What is levator ani innervated by
S4 anterior rami and inferior rectal nerve
53
What is the tendinous arc
thickening of obturator internus that serves as an attachment for iliococcygeus
54
What is coccygeus innervated by
Anterior rami S3-S4
55
What is the function of the puborectalis muscle
sling around the gut at the junction of the rectum and anal canal
maintains perineal flexure, relaxation leads to defecation
56
What structures compose the anterior wall of the pelvis
pubic bone
pubococcygeus
puborectalis
57
What structures compose the lateral wall
obturator internus and iliococcygeus
58
What structures compose the psoterior wall of the pelvis
coccygeus and piriformis
59
What structures form the floor of the pelvis
levator ani
60
Where is the urogenital diaphragm located
inferior to the pelvic diaphragm
61
What is the perineal membrane
inferior boundary of deep perineal pouch (UGD)
62
Where do muscles of the pelvic floor and perineum attach
perineal body
63
What is the perineal body a remnant of
urorectal septum
64
What are the 3 main structures within the true pelvis
bladder rectum and uterus (or prostate)
65
What anchors the external genitalia
pelvic bone
66
List examples of structures that will use the pelvis as a means of passage
sciatic nerve
obturator nerve
pudendal nerve
67
Where is the L1 dermatome
suprpubic
68
Where is the L2 dermatome
lateral thigh
69
Where is the L3 dermatome
medial thigh
70
Where is S2 dermatome
posterior thigh
71
Where is S3 dermatome
perineum
72
Where is S4-S5 dermatome
external genitalia
73
What are the 4 parts of the pelvis
2 os coxae bones
sacrum
coccyx
74
What are the 3 parts of the os coxae bones
ischium
ilium
pubic bone
75
What are the two divisions of the pelvis
false pelvis
| true pelvis
76
What is another name for false pelvis
greater pelvis
77
What is another name for true pelvis
lesser pelvis
78
Where is the true pelvis located
between pelvic brim and pelvic diaphragm
79
What structures are found within the false pelvis
sigmoid colon and small intestine
80
What is the superior boundary of the true pelvis and what is it composed of
pubic symphysis
sacral promontory
linea terminalis
margin of Ala
81
What are the boundaries of the pelvic outlet
pubic symphysis
coccyx
pubic arch
sacrotuberous ligament
82
What are the 3 elements of the pelvic bone
ilium
ischium
pubis bones
83
How is the femoral artery
can use pubic tubercle or ASIS
84
What type of joint is the lumbosacral joint
2 plane synovial zygopophyseal
85
What are associated structures of the lumbosacral joint
symphysis
IV disc
iliolumbar ligament
86
Why type of joint is the sacroiliac joint
synovial plane
87
What ligaments are associated with the sacroiliac joint
sacrospinous
sacrotuberous
anterior and posterior sacroiliac
88
What type of joint is the pubic symphysis
secondary cartilaginous
89
What ligaments are associated with the pubic symphysis
superior and inferior pubic ligament
90
What type of cartilage is found at the pubic symphysis
fibrocartilage and hyaline
91
How is the pelvis oriented in anatomic position
ASIS and pubic tubercle in line; anteriorly tilted
92
What is the function of the sacrotuberous and sacrospinous ligaments
to stabilize the sacrum and prevent upward tilting of the inferior sacrum
93
What prevents forward sliding of lumbar vertebrae on the sacrum
ileolumbar ligaments
| articular processes
94
What is the most common site of spondylolisthesis
L5-S1
95
What are the characteristics of male pelvis
heart shaped foramen
narrow angle
more prominent ischial spines
96
What are the characteristics of a female pelvis
oval shaped foramen
wider angle
not prominent ischial spines
97
What is the obstetric pelvic diameter
middle of pubic symphysis to sacral promontory
98
What is the diagonal conjugate pelvic diameter
base of pubic symphysis to sacral promontory
99
What is the anterior conjugate pelvic diameter
posterior aspect of pubic symphysis to sacral promontory
100
When will pubic symphysis have increased mobility
during pregnancy due to hormones
101
What is the interspinous diameter
distance between 2 ischial spines
102
Which diameter is the only diameter able to be measured during a pelvic exam
diagonal conjugate
103
What is an open book fracture
pubic symphysis is fractured on both sides resulting in opening of pelvis
104
How will the pelvis fracture usually
more than one area will fracture at once do to pretzel like structure
105
What composes the lateral wall of the pelvic cavity
piriformis
| obturator internus
106
What suspends the pelvic viscera
pelvic diaphragm
107
What composes the pelvic diaphragm
levator ani and coccygeus
108
What strengthens the pelvic diaphragm
kegel exercises
109
What is the anococcygeal raphe
longer section of the midline raphe behind the rectum
110
What muscles compose levator ani
puborectalis
pubococcygeus
ilealcoccygeus
111
What muscle attaches to tendinous arc of the obturator internus
iliococcygeus
112
What muscles will attach to the anococcygeal raphe
puborectalis
pubococcygeus
coccygeus
113
What is levator ani innervated by
S4 anterior rami and inferior rectal nerve
114
What is the tendinous arc
thickening of obturator internus that serves as an attachment for iliococcygeus
115
What is coccygeus innervated by
Anterior rami S3-S4
116
What is the function of the puborectalis muscle
sling around the gut at the junction of the rectum and anal canal
maintains perineal flexure, relaxation leads to defecation
117
What structures compose the anterior wall of the pelvis
pubic bone
pubococcygeus
puborectalis
118
What structures compose the lateral wall
obturator internus and iliococcygeus
119
What structures compose the psoterior wall of the pelvis
coccygeus and piriformis
120
What structures form the floor of the pelvis
levator ani
121
Where is the urogenital diaphragm located
inferior to the pelvic diaphragm
122
What is the perineal membrane
inferior boundary of deep perineal pouch (UGD)
123
Where do muscles of the pelvic floor and perineum attach
perineal body
124
What is the perineal body a remnant of
urorectal septum
