Wet Lab 3 - Ligaments Of The Pelvis

Question 1

What are ligaments?

Answer 1

They are collagenous ropes or ties that connect one bone to another across a joint. They tie one bone to another, binding them together.

Question 2

What is the origin of the posterior (dorsal) interosseous sacroiliac ligament ?

Answer 2

Iliac tuberosity

Question 3

What is the insertion of the posterior (dorsal) interosseous sacroiliac ligament ?

Answer 3

Posterior surface of the sacrum

Question 4

What does the posterior (dorsal) interosseous sacroiliac ligament prevent?

Answer 4

• forward and downward dislocation of the sacrum from the ilia
• sacral nutation

Question 5

What is sacral nutation ?

Answer 5

Rotation in the sagittal plane that moves the top forward and the coccyx backwards

Question 6

What does the long posterior sacroiliac ligament prevent?

Answer 6

Extreme counternutation

Question 7

What is the origin of the ilio-lumbar ligament ?

Answer 7

Iliac crest

Question 8

What is the insertion of the ilio-lumbar ligament ?

Answer 8

Transverse process of the 5th lumbar vertebrae

Question 9

What movements does the ilio-lumbar ligament prevent?

Answer 9

Forward dislocation (glide) of L5 on the downward-soloing upper surface of the sacrum

Question 10

What is the origin of the sacrotuberous ligament?

Answer 10

The lateral sacrum

Question 11

What is the insertion of the sacrotuberous ligament ?

Answer 11

Ischial tuberosity

Question 12

What movement does the sacrotuberous ligament prevent?

Answer 12

Sacral nutation

Question 13

What is the origin of the Inguinal ligament ?

Answer 13

Anterior Superior Iliac Spine

Question 14

Where does the Inguinal ligament insert?

Answer 14

Pubic tubercle

Question 15

Does the Inguinal ligaments prevent any movement ?

Answer 15

No - since it doesn’t cross any joints as it connects two pavers of the same bone (the hip bone), it cannot limit any joint movement

Question 16

What does the Inguinal ligament serve as?

Answer 16

• serves as an attachment for abdominal wall muscles
• protect important structures that pass beneath it (such as the femoral vessels and nerve)

Question 17

What is the origin of the anterior longitudinal ligament of the spinal column ?

Answer 17

It runs along the anterior surface of the vertebral column

Question 18

Where does the anterior longitudinal ligament of the spinal column insert?

Answer 18

Each vertebra it passes

Question 19

What movement does the anterior longitudinal ligament of the spinal column prevent?

Answer 19

It tightens in, therefore limiting spine extension

Question 20

What is the origin of the superior interpubic ligament

Question 21

Where does the superior interpubic ligament insert?

Question 22

What movements does the superior interpubic ligament enable ?

Answer 22

It helps bind the left and right hip bones together at the front across the pubic symphysis

Question 23

What is the origin of the inferior interpubic ligament (arcuate ligament =)

Question 24

Where does the inferior interpubic ligament insert?

Question 25

What movements does the inferior interpubic ligament enable ?

Answer 25

It helps bind the left and right hip bones together at the front across the pubic symphysis

Question 26

What is the origin of the sacrococcygeal ligament ?

Answer 26

The inferior portion of the sacrum

Question 27

Where does the sacrrococcygeal ligament insert?

Answer 27

The coccyx

Question 28

What movements does the sacrococcygeal ligament prevent ?

Answer 28

Dislocation of the joint - as it strengthens the joint between the sacrum and the sacrum

Question 29

What is the acetabular labrum ?

Answer 29

It is a fibrocartilaginous ring around the rim of the acetabulum

Question 30

What does the acetabular labrum serve to do?

Answer 30

• it deepens the hip joint concavity
• it serves as part of the attachment of the hip joint capsule

Question 31

What is the origin of the acetabular labrum ?

Question 32

Where does the acetabular labrum insert ?

Question 33

What does the transverse acetabular ligament do?

Answer 33

It converts the bony acetabular notch into a foramen by crossing where the acetabular labrum would be

Question 34

What is the origin of the transverse acetabular ligament ?

Question 35

Where does the transverse acetabular ligament insert?

Question 36

What passes through this foramen ?

Answer 36

Nutrient vessels

Question 37

What is the origin of the supraspinous ligament of the spinal column?

Question 38

What does the supraspinous ligament of the spinal column run along?

Answer 38

The superficial midline of the posterior vertebral column

Question 39

Where does the supraspinous ligament of the spinal column insert?

Answer 39

The tips of each spinous process as it passes

Question 40

What movements does the supraspinous ligament of the spinal column prevent

Answer 40

Limits extreme flexion of the vertebral column