Pelvic Girdle and Lower Extremity innervation

Question 1

What muscles are innervated by the Femoral Nerve?

Answer 1

-Illiopsoas(Hip Flexion)
-Sartorius(Hip Flexion, Abduction, Lateral Rotation)
-Quadriceps femoris(Knee Extension)

Question 2

What muscles are innervated by the Obturator Nerve?

Answer 2

-Pectenius
-Adductor Longus
-Adductor Brevis
-Gracilis
(Hip Adduction)

Question 3

What muscles are innervated by the Superior Gluteal Nerve?

Answer 3

-Gluteus Medius
-Gluteus Minimus
-Tensor Fascia lata
(Main movement is Hip abduction)

Question 4

What is the Piriformis innervated by?

Answer 4

Sacral Plexus;Piriformis nerve

Question 5

What muscle is innervated by the Inferior Gluteal Nerve?

Answer 5

Gluteus Maximus

Question 6

What is the Biceps Femoris Innervated by?

Answer 6

-Long head=Tibial
-Short Head= Common fibular nerve

Question 7

What is the Semitendinosus innervated by?

Answer 7

-Tibial Nerve
(Hip extension, Knee Flexion)

Question 8

What is the Semimembranosus innervated by?

Answer 8

-Tibial Nerve
(Medial rotates knee/legs)

Question 9

What is the deep fibular nerve innervated by?

Answer 9

-Tibialis Anterior(Ankle Dorsiflexion)
-Extensor Digitorum Longus
-Extensor Hallicus Longus

Question 10

What is the superficial fibular nerve innervated by?

Answer 10

Fibularis longus/brevis(Foot Eversion)

Question 11

What is the popliteus innervated by?

Answer 11

-Tibial Nerve
Tibia Medial Rotation- Open chain
Femoral Lateral Rotation-Closed Chain
Popliteus is often referred to as the “Key” to unlocking the knee since it begins knee flexion by laterally rotating the femur on the tibia

Question 12

What muscles in the foot are innervated by the Tibial Nerve?

Answer 12

-Flexor Digitorum Longus
-Flexor Hallicus Longus

Question 13

What muscles are innervated by the Medial Plantar Nerve?

Answer 13

-Flexor digitorum brevis
-Flexor Hallicus brevis

Question 14

What muscles are innervated by the Lateral Plantar Nerve?

Answer 14

-Dorsal/Plantar Interossei