Pelvic Ligaments

Question 1

Iliolumbar

Answer 1

Origin: Sacrum

Insertion: Ilium

Action: Allows little movement; stability

Comment: Consists of posterior (strong), anterior (rotational stability), and interosseous (strongest) ligaments

Question 2

Sacrococcygeal

Answer 2

Origin: Coccyx

Insertion: Sacrum

Action: Allows some movement, stability

Comments: Consists of anterior, posterior and lateral ligaments; containing an intervertebral disc between s5 and c1

Question 3

Iliolumbar

Answer 3

Origin: Transverse process of L5

Insertion: Crest of ilium

Action: Limits movement in the lumbrosacral and sacroiliac joints

Question 4

Pubic

Answer 4

Attachment: Between pubic bones

Comment: Allows some movement, fibrocartilage disc

Question 5

Sacrotuberous

Answer 5

Origin: Iliac spine and sacrum

Insertion: Ischial tuberosity

Comment: Provides vertical stability

Question 6

Sacrospinous

Answer 6

Origin: Ischial spine

Insertion: Sacrum and coccyx

Comments: Divides sciatic notch into greater and lesser sciatic foramina