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Flashcards in The Pelvis Deck (13)
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1
Q

Which bony structures form the pelvis?

A
2 x innominate “hip” bones
 sacrum
 Coccyx 
 Acetabulum 
 Obturator foramen
pubic symphysis
2
Q

What is the coccyx?

A

Very bottom portion of the spine below the sacrum

- tail bone

3
Q

What is the acetabulum?

A

Hip joint socket

4
Q

What is the obturator foramen?

A

Large opening created by the ischium and pubis bones of the pelvis through which nerves and blood vessels pass

5
Q

What is the pubic symphysis ?

A

The union of innominate bones
Symphysis is a secondary cartilaginous joint
- Relaxes during childbirth allowing room for baby head

6
Q

What are the 3 parts of the hip bone?

A

Ileum - top part
Ischeum - bum bone
Pubis - anterior facing

7
Q

How does a child’s pelvis differ from an adults?

A

The pelvic bones are separate - not fused yet to allow room for growth
Acetabulum is deeper

8
Q

Which structures form the pelvic aperture?

A
pubic symphysis
pubic crest
pectineal line (attached to pectineus muscle)
arcuate line (inside ileum)
sacral alae
sacral promontory (protrudes anteriorly)
9
Q

What is the lesser/true pelvis?

A

Where pelvic / genitourinary organs are

Space enclosed by pelvic girdle and below pelvic brim

10
Q

What is the greater/false pelvis?

A

Larger and superior to the lesser pelvis

Part the gut rests on

11
Q

How do female pelves differ from males?

A

Wider to allow childbirth
Wider true pelvis margins
Sub pubic notch below pubic symphysis at obtuse angle
Greater sciatic notch in females

12
Q

Describe the iliac crest

A

Extends posteriorly from ASIS (anterior superior iliac spne) to the PSIS (posterior superior iliac spine)

13
Q

What is the pelvic aperture?

A

The line dividing the pelvis into Greater/false and Lesser/true
aka. pelvic brim/ pelvic inlet