DHUBS - TEST 2 - Upper and Lower nerve roots.

Question 1

What muscle/s, actions and peripheral nerves are associated with C5?

Answer 1

C5 (Shoulder abduction early)
Muscle: Supraspinatus
Action: Shoulder abduction (early)
Peripheral nerve: Suprascapular nerve

C5 (Shoulder abduction late)
Muscle: Deltoid
Action: Shoulder abduction (late)
Peripheral nerve: Axillary nerve

Question 2

What muscle/s, actions and peripheral nerves are associated with C6?

Answer 2

C6
Muscle: Wrist extensors
Action: Wrist extension
Peripheral nerve: Radial nerve

Question 3

What muscle/s, actions and peripheral nerves are associated with C7?

Answer 3

C7
Muscle: Wrist flexors
Action: Wrist flexion
Peripheral nerve: Median nerve

Question 4

What muscle/s, actions and peripheral nerves are associated with L4?

Answer 4

L4
Muscle: Tibialis Anterior
Action: Ankle inversion (in dorsiflexion)
Peripheral nerve: Deep fibular nerve

Question 5

What muscle/s, actions and peripheral nerves are associated with L5?

Answer 5

L5
Muscle: Extensor Hallicus Longus
Action: Hallux Extension
Peripheral nerve: Deep fibular nerve

Question 6

What muscle/s, actions and peripheral nerves are associated with S1-2?

Answer 6

S1-2
Muscle: Gastrocnemius
Action: Plantarflexion
Peripheral nerve: Tibial nerve