THE HIP

Question 1

Weight distribution

Answer 1

• Head and neck of the femur

- Some goes to the pubic bone and the ischium

Question 2

Body weight forces

Answer 2

Sacrum inferiorly and anteriorly b/w the ilia

Lower end swings posteriorly

Question 3

Sacroiliac joint

Answer 3

Resists the anterior rotation of the pelvis

Sacrum’s movement is limited to upward movement of the inferior end of the sacrum

Question 4

Sacrospinous ligament

Answer 4

Sacrum and coccyx to ischial spine

• Converts greater sciatic notch into greater sciatic foramen
• Transmits weight anterior

Question 5

Sacrotuberous ligament

Answer 5

• Sacrum and coccyx to ischial tuberosity

- Transmits weight down

Question 6

Purpose of sacrotuberous and spinous

Answer 6

• Limit upward movement of the inferior end of the sacrum

- Ligaments limit how much swing there is (when moving from supine to prone the sacrum swings)

Question 7

Dorsal and ventral sacroiliac ligaments

Answer 7

Join posterior and superior cavities

Question 8

Pubic symphysis joint

Answer 8

• Resists flattening of the pelvis

- Prevent bones from crashing into each other by distributing weight anteriorly

Question 9

Iliofemoral ligament

- Y shape?

Answer 9

• Attaches to the AIIS and acetabular rim and intertrochantric line
• Prevents hyperextension of the hip joint (keeps femur in acetabulum)
• Prevents undue extension at joint to keep posture upright

Question 10

Pubofemoral ligament

Answer 10

• Pubic portion of the acetabular brim
• Tightening during abduction (to prevent excessive abduction)
• Prevents hyperextension

Question 11

Ischiofemoral ligament

Answer 11

Ischial rim of the acetabulum

Tightenind during extensio