Hip Joint - Osseous Landmarks

Question 1

What’s the Acetabulum Notch

Answer 1

The rim of the acetabulum continuous with the acetabular fossa; it allows the passage of vessels and nerves to the hip joint

Question 2

auricular surface of the ilium?

Answer 2

it is on the medial side of the ilium, cover with cartilage to articulate with the sacrum to form the sacroiliac joint

Question 3

arcuate line of the ilium?

Answer 3

is the inferior boundary of the ilium, marks the transition between the abdominal cavity and the pelvic cavity. The line is the iliac portion of the line terminalis of the pelvis

Question 4

pectineal line?

Answer 4

Also known as the pecten pubis, it lies on the superior pubis ramis, and Is the continuation of the arcuate line…

Question 5

intertrochanteric crest

Answer 5

is a bony ridge on the posterior of the femur which connects the greater and lesser trochanter. The quadrate femoris attaches here.

Question 6

quadrate tubercle

Answer 6

is an eminence on the intertrochanteric crest of the posterior femur in which the quadratus femoris attaches

Question 7

Origin, Insertion, Action of the Sartorius muscle

Answer 7

most superficial of anterior thigh muscles
- ASIS
- Anterior/Medial surface of proximal tibia
- assist in flexing the thigh at the hip joint, and flexing the knee at the knee joint
- also abduct the thigh and rotate it laterally when resting the foot on the opposite knee
- femoral nerve
- forms the lateral portion of the femoral triangle
-

Question 8

Tensor Fascia Latae

Origin, Insertion, Action, Nerve Supply

Answer 8

ASIS and the anterior part of the iliac crest
Inserts into the IT band
abduct, flex, internally rotate at the hip joint

Question 9

Adductor muscles Origin, Insertion, Nerve Supply,

Answer 9

inferior pubis rami, ischialpubis rami, ischial tuberosity
Inserts into the medial lip of the linea aspera and the adductor tubercle of the femur

• adductor part - Obturator nerve L2-L4
• hamstring part - tibial nerve L4

Question 10

Weakened adduction, which nerve could be injured?

Answer 10

Obturator nerve

Adductor part of the adductor muscle

Question 11

Obturator externus muscle: Nerve root, origin, insertion

Answer 11

This muscle insert into the lateral wall of the trochanteric fossa

Originate from the external surface of the obturator membrane and bony structure

Posterior obturator nerve (L3-L4)

Question 12

Obturator internus muscle:
Nerve root
Origin
Insertion

Answer 12

-Forms the antero-lateral wall of the true pelvis
-inner surface of the obturator membrane and surrounding bone
-inserts into the greater trochanter of the femur, medial side
nerve to obturator internus L5-S1

Question 13

Superior gemellus

Answer 13

external surface of the ischial spine

• inserts medial side of the greater trochanter with the obturator internus
• nerve to obturator internus L5-S1

Question 14

Inferior gemellus

Answer 14

• upper part of the ischial tuberosity
• insert with the superior gem & Ob. internus on the medial aspect of the greater trochanter of the femur
• nerve to quadrates femoris L5-S1

Question 15

Semimembranosus

Answer 15

• superior & lateral aspect of the ischial tuberosity
• medial condyle of the tibia
• tibial nerve L5, S1, S2

Question 16

Bicep femoris (LH) & (SH)

Answer 16

• long head - ischial tuberosity
• short head lateral lip of the linea aspera of the femur
• inserts into the fibula of the lower leg bone

Question 17

Semitendinosus

Answer 17

• ischia tuberosity

- inserts medial surface of proximal tibial, behind the gracilis muscle