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Cranial Nerve 3

Specific Strength Testing

QuestionAnswer
Nerve roots responsible for intrinsic muscles of the hand C8, T1
The muscles which control the adduction and abduction of the fingers are called Interossei
Interossei are innervated by what nerve Ulnar nerve
Nerve roots responsible for flexors of the fingers C7, C8, T1
The muscles which control the flexion of fingers Flexor digitorum profundus
Flexor digitorum profundus is innervated by Median nerve (radial and median ulnar)
Nerve roots responsible for wrist flexion C7, C8, T1
Wrist flexion are innervated by C7, C8, T1
Nerve roots responsible for wrist extension C6, C7, C8
The muscles which control the wrist extension Extensor radialis muscle
Extensor radialis muscle is innervated by Radial nerve
Damage to radial nerve result to Wrist drop
Loss of ability to extend the hand at the wrist Wrist drop
Other term for wrist drop Saturday Night Palsy
Nerve roots responsible for elbow flexion C5, C6
The main flexor (supinator) of the forearm is Brachialis muscle
Brachialis muscle is innervated by Musculocutaneous nerve
Nerve roots responsible for elbow extension C7, C8
The main extensor of the forearm is Triceps muscle
Triceps muscle is innervated by Radial nerve
Nerve roots responsible for shoulder adduction C5 through T1
The main muscle of shoulder adduction is Pectoralis major muscle
Nerve roots responsible for shoulder abduction C5, C6
The main muscle of shoulder abduction Deltoid muscle
Deltoid muscle is innervated by Axillary nerve
Nerve roots responsible for hip flexion L2, L3, L4
The main hip flexor muscle Iliopsoas muscle
Iliopsoas muscle is innervated by Femoral nerve
Nerve roots responsible for hip extension L5, S1
The main hip extensor muscle Gluteus maximus muscle
Gluteus maximus muscle is nnervated by Inferior gluteal nerve
Nerve roots responsible for hip abduction L4, L5, S1
Nerve roots responsible for hip adduction L2, L3, L4
Muscles responsible for hip adduction are innervated by Obturator nerve
Nerve roots responsible for knee extension L2, L3, L4
Muscles responsible for knee extension Quadriceps muscle group
Quadriceps muscle group are innervated by Femoral nerve
Nerve roots responsible for knee flexion L5, S1, S2
Muscles responsible for knee flexion Hamstrings muscle
Hamstrings muscle are innervated by Branches of sciatic nerve
Nerve roots responsible for ankle dorsiflexion L4,L5
Muscles responsible for dorsiflexion is innervated by Deep peroneal nerve
When deep peroneal nerve is injured it results to Foot drop
Inability to dorsiflex the foot Foot drop
Nerve roots responsible for ankle plantarflexion S1, S2
Ankle plantar flexion are mediated by what muscles Gastrocnemius and soleus muscles
Gastrocnemius and soleus muscles are innervated by Branches of sciatic nerve
Created by: analyncosim