Anterior Thigh Muscles

Question 1

Illipsoas

Answer 1

O: Iliacus:
Iliac fossa and crest

Psoas Major:
Transverse process and bodies of T12 - L5

I: Lesser Trochanter of the Femur

A: Hip Extension and Abduction, Flexion of Lumbar Spine

N: Iliascus:
Femoral Nerve (L2 - 3)

Psoas Major:
Femoral Nerve (L1 - 3)

Question 2

Sartorius

Answer 2

O: ASIS

I: Pes Anserinus
(Superior Medial Surface of the Tibia)

A: Flexion (hip and knee), External Rotation, Abduction

N: Femoral Nerve (L2 - 3)

Question 3

Tensor Fascia Lata

Answer 3

O: Iliac Crest, ASIS

I: Iliotibial Band

A: Flexion (hip and knee), Abduction (hip), 
Internal Rotation (hip)

N: Superior Gluteal Nerve (L4 - 5)

Question 4

Quadriceps Group

1. Rectus Femoris
2. Vastus Lateralis
3. Vastus Medialis
4. Vastus Intermedius

Answer 4

O: Rectus Femoris:
AIIS

Lateralis:
Lat. Lip of Linea Aspera, Greater Trochanter

Medialis:
Med. Lip of Linea Aspera, Greater Trochanter

Intermedius:
Anterior and Lateral Surface of the Femur

I: Tibial Tuberosity via the Patellar Tendon Extension (knee)

Rectus Femoris:
Flexion (hip)

N: Femoral Nerve (L2 - 4)

Question 5

Articularis Genu

Answer 5

O: Lower ¼ of the Anterior Surface of the Femur

I: Articular Capsule of the Knee Joint

A: Places Tension on the Suprapatellar Bursa

N: Femoral Branch to Vastus Intermedius
(L2 - 4)

Question 6

Pectineus

Answer 6

O: Superior Pubic Ramus

I: Pectineal Line
(Line extending from the Lesser Trochanter to the Linea Aspera)

A: Adduction (hip), Flexion (hip), Internal Rotation (hip)

N: Femoral Nerve
(L2 - 3)

Question 7

Adductor Brevis

Answer 7

O: Inferior Pubic Ramus

I: Upper ½ of Linea Aspera

A: Adduction (hip), Slight Hip Flexion

N: Obturator Nerve
(L2 - 4)

Question 8

Adductor Longus

Answer 8

O: Anterior Pubic Ramus

I: Middle of Linea Aspera

A: Adduction, Flexion (hip)

N: Obturator Nerve
(L2 - 4)

Question 9

Adductor Magnus

Answer 9

O: Ischial Tuberosity, Ischium, Pubic Ramus

I: Line from Lesser Trochanter to Linea Aspera, Linea Aspera, Medial Supracondylar Line, Adductor Tubercle

A: Adduction, Internal Rotation, Flexion Hip from Extension, Extend Hip from Flexion

N: Obturator Nerve
(L2 - 4)

Question 10

Gracilis

Answer 10

O: Inferior Pubic Ramus

I: Pes Anserinus
(Superior Medial Tibia)

A: Adduction, Flexion (hip)

N: Obturator Nerve
(L2 - 3)