Nerve Root/Spinal Segments & ASIA Testing Location

C5 & C6

What nerve root(s) are associated with biceps brachii?

C5; lateral side of antecubital fossa just proximal to the elbow

What is the PRIMARY nerve root of the biceps brachii, where would you test it?

Biceps Brachii or Brachioradialis

Which DTR would you test to test the reflex for the C5/C6 nerve root?

Musculocutaneous nerve

What nerve innervates biceps brachii?

C5 & C6

What nerve root(s) are associated with brachioradialis?

Radial Nerve

What nerve innervates brachioradialis?

C6; proximal phalanx of the thumb on the dorsal side

What is the PRIMARY nerve root associated with the brachioradialis? Where would you test it?

C6 & C7

What nerve root(s) are associated with triceps brachii?

Radial Nerve

What nerve innervates the triceps brachii?

Triceps Brachii

Which DTR would you test to test the reflex for the C7 nerve root?

C7; proximal phalanx of the middle finger on the dorsal side

What is the PRIMARY nerve root associated with the triceps brachii? Where would you test it?

L4, L5, S1

What nerve root(s) are associated with hamstrings?

Sciatic nerve

What nerve innervates the hamstrings?

L2, L3, L4

What nerve root(s) are associated with the quadriceps?

Femoral nerve

What nerve innervates the quadriceps?

S1, S2

What nerve root(s) are associated with the achilles?

Tibial Nerve

What nerve innervates the achilles?

L5, S1

What nerve root(s) are associated with the plantar/babinski reflex?

T8, T9, T10, T11, T12

What nerve root(s) are associated with the abdominal reflex?

Thoracoabdominal nerves

What nerve innervates the abdominals?

On the lateral side of the antecubital fossa just proximal to the elbow

Where is the ASIA testing location for C5 dermatome?

At least one cm lateral to the occipital protuberance
at the base of the skull

Where is the ASIA testing location for C2?

In the supraclavicular fossa, at midclavicular line

Where is the ASIA testing location for C3?

Over the AC joint

What is the ASIA testing location for C4?

On the dorsal surface of the proximal phalanx of the thumb

Where is the ASIA testing location for C6?

On the dorsal surface of the proximal phalanx of the middle finger

Where is the ASIA testing location for C7?

On the dorsal surface of the proximal phalanx of the little finger

Where is the ASIA testing location for C8?

On the medial side of the antecubital fossa, just proximal to the medial epicondyle of the humerus

Where is the ASIA testing location for T1?

At the apex of the axilla

Where is the ASIA testing location for T2?

Midway b/t the key sensory points for T12 and L2

Where is the ASIA testing location for L1?

Anterior-medial thigh at the midpoint drawn on an imaginary line connection midpoint of the inguinal ligament and the medial femoral condyle

Where is the ASIA testing location for L2?

At the medial femoral condyle above the knee

Where is the ASIA testing location for L3?

Over medial malleolus

Where is the ASIA testing location for L4?

Over the dorsum of the foot at the 3rd metatarsal phalangeal joint

Where is the ASIA testing location for L5?

Lateral aspect of the calcaneus

Where is the ASIA testing location for S1?

At the midpoint of the popliteal fossa

Where is the ASIA testing location for S2?