Anterior Thigh Muscles

Question 1

The Iliopsoas muscle consists of?

Answer 1

Psoas Major and Iliacus muscles

Question 2

Psoas Major Origin

Answer 2

Lumbar Vertebrae

Question 3

Iliacus origin

Answer 3

Iliac Fossa of the Pelvis

Question 4

Iliopsoas Attachment

Answer 4

Lesser Trochanter of the Femur

Question 5

Action of Iliopsoas

Answer 5

Flexes and Laterally Rotates at the Hip

Question 6

Psoas Major Innveration

Answer 6

Anterior Rami of L1/L2/L3

Question 7

Iliacus Innveration

Answer 7

Femoral Nerve (L2/L3/L4)

Question 8

Quadriceps Femoris consists of how many Muscles and what are they called?

Answer 8

4 - Rectus Femoris
Vastus Lateralis
Vastus Intermedius
Vastus Medialis

Question 9

Rectus Femoris Origin(s)

Answer 9

Ilium, just Superior to the Acetabulum and the Anterior Superior Iliac Spine (ASIS)

Question 10

Quadriceps Femoris Attachment

Answer 10

The 4 Muscles converge to form a tendon (Quadriceps Tendon) which attaches to the Patella

Question 11

How does the Patella attach to the Tibia

Answer 11

Patellar Ligament

Question 12

Quadriceps Femoris Action

Answer 12

Extension at the Knee Joint

Question 13

Additional action of Rectus Femoris

Answer 13

Flexion at the Hip Joint.

It is the only part of the Quadriceps to cross 2 joint structures.

Question 14

Innervation of the Quadriceps Femoris muscles

Answer 14

Femoral (L2/L3/L4)

Question 15

Which of the Vastus Muscles is the Deepest

Answer 15

Vastus Intermedius

Question 16

Sartorius Origin

Answer 16

Anterior Superior Iliac Spine

Question 17

Sartorius Attachment

Answer 17

Superior Medial Surface of the Tibia

Question 18

Sartorius Actions

Answer 18

At the Hip: Flexion, Abduction and Lateral Rotation

At the Knee: Flexion

Question 19

Sartorius Innervation

Answer 19

Femoral (L2/L3/L4)

Question 20

Pectineus Origin

Answer 20

Pectineal line on the Anterior Surface of the Pelvis (Superior Pubic Rami)

Question 21

Pectineus Attachment

Answer 21

Pectineal line on the Posterior side of the Femur, just Inferior to the Lesser Trochanter.

Question 22

Pectineus Action

Answer 22

Adduction and Flexion at the Hip Joint.

Question 23

Pectineus Innveration

Answer 23

Femoral (L2/L3/L4). May also have innervation from the Obturator nerve (L2/L3/L4)

Question 24

Test for Femoral Nerve Damage

Answer 24

Patient in Supine Position with the knee slightly flexed. Ask them to extend the leg and resist their movement. Quadriceps definition should be evident if normal.