MUSCLES IDR

Question 1

Pectineus

Answer 1

Anterior compartment

INNERVATION:
Femoral nerve/obturator nerve

ACTION:
Flexion at hip, extends at knee
Medial Rotation
ADduction

Question 2

Illiopsoas

Answer 2

Anterior compartment

INNERVATION:
Femoral Nerve (and Lumbar Plexus)

ACTION:
Flexion at hip
Stabilizes hip joint

Question 3

Sartorius

Answer 3

Anterior compartment

INNERVATION:
Femoral nerve

ACTION:

Flexion at hip, extension at knee
ABduction
Lateral Rotation

Question 4

Quadriceps Femoris

Answer 4

Anterior compartment
Rectus femoris, V. lateralis, V. medialis, V. intermedius

INNERVATION:
Femoral Nerve

ACTION:
Flexion at hip, extend the knee

Question 5

Articularis genus

Answer 5

Anterior compartment
Derived from vastus intermedius

Pulls synovial membrane to avoid it getting pinched during extension of knee joint

Question 6

Adductor longus
Adductor brevis
Adductor magnus

Answer 6

Medial compartment

INNERVATION:
Obturator N.

ACTION:
ADduction

Magnus - Obturator N. and Tibial N.

Question 7

Gracilis

Answer 7

Medial compartment

INNERVATION:
Femoral N.

ACTION:
ADduction
Medial Rotation

Question 8

Obturator externus

Answer 8

ACTION:
Lateral rotation of thigh
ABduction