C7 nerve root
Roots · C7
Continues alone as the middle trunk — the only trunk formed by a single root.
Detail
- Motor
- Contributes to triceps, wrist flexors and finger extensors
- Sensory
- Middle finger (C7 dermatome)
When it goes wrong
Cervical disc herniation at C6/7
Weak elbow extension, reduced triceps reflex, numbness of the middle finger.
Practise this structure
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