Pelvic Bones/Joints Flashcards

1
Q

SI Joint what kind of joint?

A

synovial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what kind of joint is pubic symphysis?

A

cartilaginous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is in between greater and lesser sciatic notch?

A

ischial spine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

ischial tuberosity direction?

A

postero-inferior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what does ramus of ischium connect?

A

connects ischial tuberosity posteriorly to pubis anteriorly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is above and below the body of pubis?

A

superior pubic ramus

inferior pubic ramus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is on the lateral edge of pubic crest?

A

pubic tubercle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is the promontory of sacrum?

A

anterior margin of S1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what flanks the promontory of sacrum?

A

Ala

lateral masses of fused transverse processes of S1-5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what demarcates the false from the true pelvis?

A

iliopectineal line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

starting with pubic symphysis, go in a circle and describe the bones for the true pelvis:

A
  1. pubic symphysis
  2. pubic crest
  3. pectineal line of pubic bone
  4. arcuate line of ileum
  5. margin of ala
  6. promontary
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what shapes of pelvic inlets are there?

A

gynaecoid: (wide) mostly women
anthropoid: male
android: male

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Compare male and female pelvis: General Structure

A

Female: thin light
Male: thick heavy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Compare male and female pelvis: shape of inlet

A

Female: transverse oval
Male: heart shaped

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Compare male and female pelvis: obturator foramen

A

Female:oval
Male: round

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Compare male and female pelvis: acetabulum

A

Female: small
Male: large

17
Q

Compare male and female pelvis: subpubic arch

A

Female: obtuse angle
Male: acute angle

18
Q

Compare male and female pelvis: greater sciatic notch

A

Female:almost 90 degrees
Male: narrow inverted ‘V’

19
Q

how to tell male vs. female pelvis using acetabulum?

A

female: distance from acetabulum to pubic symphysis is greater than the width of the acetabulum.
Male: same

20
Q

edges of public outlet?

A

ant: pubic symphysis
post: tip of coccyx
laterally: ischial tubs

21
Q

the line from the base of pubic bone, through ischial spine to S4 is called?

A

plane of least dimensions

22
Q

what’s the purpose of the hammock-like pelvic floor?

A

helps turn baby’s head during birth

23
Q

Si joint has 3 ligaments supporting it:

A
  1. anterior SI ligament
  2. interosseous SI ligament
  3. posterior SI ligament
24
Q

purpose of SI joint ligaments?

A

limit mobility

25
Q

3 Accessory ligaments of SIJ:

A

iliolumbar
Sacrospinous
sacrotuberous

26
Q

what ligaments outlines/closes the greater and lesser sciatic notches?

A

Sacrospinous

sacrotuberous

27
Q

nutation does what to inlet/outlet?

A

close inlet

open outlet

28
Q

counter-nutation does what to inlet/outlet?

A

open inlet

closes outlet

29
Q

pubic symphysis ligaments do what?

A

resists vertical forces

30
Q

2 pubic symphysis ligaments?

A

superior

inferior arcuate

31
Q

pubic symphysis reinforced by? 3 things

A

criss-crossing fibres from obliques, rectus sheath, adductor longus