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Flashcards in General Pelvis Deck (13)
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1
Q

What is the function of the pelvis

A

Transmit weight from vertebral column to lower limbs
Contribute to reciprocal gait pattern
Provide attachment for muscles
Provide bony protection to birth canal

2
Q

What is different about the female pelvis

A

It is shaped for childbirth So there is a wider angle of the public arch in women

3
Q

What is the bone structure in the pelvis

A

Spongy

Less dense

4
Q

More stability or mobility?

A

More stability than mobility due to lack of mobility of sacro-iliac joints and symphysis pubis

5
Q

What are the components of a hemi pelvis

A

Ilium 2/5
Ischium 2/5
Pubis 1/5

6
Q

Describe the sacrum?

A

Triangular
Comprises of fused vertebrae
Auriculàr surface articulates with ilium
Posteriorly, sacrum is roughened for attachments of sacro-iliac ligaments

7
Q

Describe the coccyx?

A

4 fused vertebrae
Anterior surface is concave
Posterior surface has tubercles
Coccygeal cornua articulates with sacral cornua

8
Q

What is the sacro-iliac joint?

A

Fibrous capsule completely surrounding the joint

9
Q

Describe the movement possible at the pelvis

A

In early childhood, movement is possible in all directions

In adulthood, slight gliding and rotation is possible (nutation)

10
Q

What is nutation?

A

Anterior rotation at base of pelvis and posterior rotation at apex

11
Q

What is the opposite of nutation?

A

Counternutation

12
Q

What is diastasis and give an example

A

Separation of pubic bones without fracture

Giving birth- 9mm separation

13
Q

What is the pubic symphysis

A

A secondary cartilaginous joint located between the left and right pubic bones
Allows no movement