Roots to Reach
Asystole

Five paper threads across the table,
Take my hand and trace them through.

C five, C six, C seven join,
C eight and T one complete the line.
Ventral rami weave and rearrange,
From neck to arm, the names will change.
Five and six make the upper trunk,
Seven runs the middle one.
Eight and T one meet below,
Then divisions split the flow.

Roots, trunks, divisions, cords,
Branches carry out the word.
C five down to T one,
Follow where the fibres run.
From the shoulder to the hand,
Find the movement, understand.
Roots, trunks, divisions, cords,
Branches bring the signal home.

Musculocutaneous bends the elbow,
Feels the outer forearm too.
Axillary lifts through the deltoid,
Round the surgical neck it loops.
Radial lifts the wrist and fingers,
Humeral shaft injury can let them drop.
Median helps the thumb oppose;
Carpal tunnel can slow that job.
Ulnar spreads the fingers wide,
Runs behind the elbow's inner side.
Little finger tingling, grip less sure,
Trace the pattern, then explore.

Roots, trunks, divisions, cords,
Branches carry out the word.
C five down to T one,
Follow where the fibres run.
From the shoulder to the hand,
Find the movement, understand.
Roots, trunks, divisions, cords,
Branches bring the signal home.

Upper trunk, C five and six:
Shoulder lift and elbow flex grow weak.
Lower trunk, C eight, T one:
Small hand muscles lose their strength.
Long thoracic, five, six, seven,
Keeps serratus holding close.
Damage can leave the scapula winging,
When the arm pushes forward most.
One finding starts a question;
Let strength and feeling tell the rest.

Roots, trunks, divisions, cords,
Branches carry out the word.
C five down to T one,
Follow where the fibres run.
From the shoulder to the hand,
Find the movement, understand.
Roots, trunks, divisions, cords,
Branches bring the signal home.

Five paper threads, the lamp burns low,
Close the book and trace them slow.