Pelvic Girdle

Question 1

List the functions of the pelvic girdle.

Answer 1

• Weight bearing
• Transfer weight from axial to lower appendicular skeleton
• Attachment point for many muscles
• Protects abdominal organs

Question 2

What is the name of the complete fused hip bone?

Answer 2

Innominate Bone

Question 3

Which three bones fuse to form the innominate bone?

Answer 3

Ilium, Ischium, Pubis

Question 4

What are the 2 bones that form the pelvic girdle?

Answer 4

Innominate Bone and Sacrum

Question 5

Pubic Symphysis is what type of joint?

Answer 5

Cartilaginous (anterior)

Question 6

What joints of the pelvic girdle are synovial?

Answer 6

Sacroiliac joints (posterior)

Question 7

Where does the fusion of the innominate bone occur? What does it begin as?

Answer 7

At the acetabulum, begins as triadiate cartilage.

Question 8

What structure is the “sit bones”?

Answer 8

Ischial Tuberosities of the innominate bone

Question 9

Which Iliac Spine cannot be palpated?

Answer 9

Posterior Inferior Iliac Spine

Question 10

What comprises the pubic arch?

Answer 10

The angle that is formed by the 2 innominate bones is known as the pubic arch.

Question 11

What are the 3 distinct markings that can be identified on the later aspect of the ilium?

Answer 11

• Inferior Gluteal Line
• Anterior Gluteal Line
• Posterior Gluteal Line

Question 12

What are the gluteal lines important for?

Answer 12

They are important landmarks for describing the muscles attachments for the gluteal muscles.

Question 13

What passes the obturator foramen?

Answer 13

It is a passage way for nerves and blood vessels.

Question 14

What view can the acetabulum be viewed at?

Answer 14

Anteriorly only.

Question 15

At which view must the gluteal lines be viewed?

Answer 15

An external view.

Question 16

What closes in the acetabular notch of the acetabulum?

Answer 16

Transverse acetabular ligament

Question 17

What structure articulates with the head of the femur?

Answer 17

Lunate surface of the acetabulum.

Question 18

Where is the lesser/true pelvis located and what does it contain?

Answer 18

Inferior to the iliopectineal line and houses the reproductive organs.

Question 19

What pelvis portion protects the bladder and some digestive system organs?

Answer 19

Greater/False Pelvis which is superior to the iliopectineal line.

Question 20

Functionally, what is the pubic Symphysis joint?

Answer 20

Ampiarthrosis

Question 21

What special type of rotation does the sacro-iliac joint allow for?

Answer 21

Nutation.

Question 22

Of the 3 sacro-iliac ligaments which is the strongest?

Answer 22

Interosseus

Question 23

What are the 3 ligaments that support the sacro-iliac ligaments?

Answer 23

• Anterior
• Interosseus
• Posterior

Question 24

Where does the Iliolumbar ligament run to and from?

Answer 24

The crest of the ilium to the transverse process of L5

Question 25

Which ligament is often involved in low back pain?

Answer 25

Iliolumbar ligament

Question 26

What is the function of the sacrotuberous ligament?

Answer 26

Closes the posterior aspect of the lesser sciatic notch to create a foramen.

Question 27

Which ligament runs from the inferior sacrum to the ischial tuberosity?

Answer 27

Sacrotuberous

Question 28

Which ligament turns the greater sciatic notch into a foramen?

Answer 28

Sacrospinous ligament

Question 29

Where does the Sacrospinous ligament run?

Answer 29

passes he lateral sacrum and coccyx to the ischial spine.

Question 30

Why are the pelvic ligaments so important?

Answer 30

- Transmission of body weight | - Securing the sacroiliac joint during movement in other others of the body

Question 31

Does males or females have a longer sacral shape?

Answer 31

Males

Question 32

The width between the ischia Tuberosities are much narrower in which gender?

Answer 32

Females.

Question 33

Compared to the female pelvis, the male pelvis has: a) round pelvic inlet b) wide pelvic outlet c) long curved sacrum d) wide pelvic arch e) wide iliac blades

Answer 33

c) long curved sacrum

Question 34

Which ligament runs between the sacrum and the ischial tuberosity? a) Sacrospinous b) sacrotuberous c) Iliolumbar d) sacroiliac e) Iliofemoral

Answer 34

b) sacrotuberous ligament