Gluteal Thigh

Question 1

Answer 1

Question 2

What bone of the pelvis do you sit on?

Answer 2

Ischium

Question 3

Answer 3

Question 4

What two bones articulate at the pubic symphysis?

Answer 4

The two ox coxae (pubis bones of ox coxae)

Question 5

The […] attach to the ischial tuberosity.

Answer 5

Hamstring muscles

Question 6

Answer 6

Question 7

Answer 7

Question 8

Answer 8

Question 9

Answer 9

Question 10

Answer 10

Question 11

The linea aspera is on the […] surface of the femur and is an important site of muscle attachment.

Answer 11

Posterior

Question 12

Answer 12

Question 13

• What structures are shown?
• What are the areas in red?

Answer 13

Areas in red are weak spots that are more prone to injury.

Question 14

Answer 14

Question 15

What structure is shown?

Answer 15

Bursae, specfically the arrows are pointing to the trochanteric bursae. Of all the hip bursae, these are the most likely to become inflamed and are the most clinically significant.

Question 16

What movements are possible at the hip?

Answer 16

Flexion

Extension

Abduction

Adduction

Internal rotation

External rotation

Circumduction

Question 17

• What muscles are shown?
• What are their actions?
• What are their innervations?

Answer 17

1. Gluteus maximus; external rotation, extension, adduction and abduction of the thigh at the hip joint; inferior gluteal nerve
2. Gluteus medius; abduction of thigh at hip and stabilization of hip; superior gluteal nerve
3. Gluteus minimus; abduction of thigh at hip and stabilization of hip; superior gluteal nerve
4. Tensor Fasica Lata; tenses the fascia lata (iliotibial tract or IT band); superior gluteal nerve
5. IT band

Question 18

Answer 18

Question 19

MUSCLES 1 AND 2 ONLY

• What muscles are these?
• What are their actions?
• What are their innervations?

Answer 19

*

Question 20

MUSCLES 3, 4, 5, and 6 ONLY

• What muscles are these?
• What are their actions?
• What are their innervations?
• Where do all of these muscles (including 1 and 2) attach?

Answer 20

All attach to greater trochanter

Question 21

Answer 21

Question 22

Where should intramuscular injections be given in the gluteal region and why?

Answer 22

Question 23

Answer 23

Question 24

• What muscles are shown?
• What are their actions?
• What are their innervations?

Answer 24

Question 25

What 3 muscles make up the hamstrings?

Answer 25

Biceps femoris

Semitendinosus

Semimembranosus

Question 26

All hamstrings muscles arise from the […]. Biceps femoris runs […] to the knee and the semitendinosus and semimembranosus run […] to the knee.

Answer 26

Ischial tuberosity

Lateral

Medial

Question 27

The sciatic nerve emerges […] to piriformis in most people.

Answer 27

Inferior

Question 28

Describe the vascularization of the posterior leg.

Answer 28

Deep femoral artery (blue) provides blood supply to posterior (upper) leg. Via passage through the adductor hiatus it becomes the popliteal artery, which then divides into the anterior tibial, posterior tibial and fibular artery which supply blood to lower leg.