🧠 Flashcard: erb's palsy | mmb

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 brachial plexus

Damage to C5-C6 due to neck bending e.g
.falling off horse, or when shoulder gets

stuck in child birth

(musculocutaneous innervates
biceps which normally flexes &
supinates the elbow  )

(KO of deltoid and
teres minor)

Loss of regimental
patch sensation

(KO of
supraspinatus )

(KO of teres minor )

(KO of
infraspinatous)

MUSCOLCUTANEOUS NERVE AXILLARY NERVE

Loss of forearm sensation
Elbow extension

Arm adducted

Arm medially rotated

SUPRASCAPULAR NERVE

AKA waiter’s tip – the waiter brings you ‘erbs!

Some damage to
RADIAL nerve
causes wrist drop
as well