Spine and Spinal Cord Trauma ATCN Questions and Complete Answers

Spine and Spinal Cord Trauma ATCN
Questions and Complete Answers
Dermatomes - Answer: the area of skin innervated by the sensory axon within a particular
segmental nerve root



Sensory lvl: Dermatomes - Answer: the lowest dermatome with normal sensory function; can differ
on the two sides of the body.



Cervical spin innervation - Answer: 1. posterior head

2. ears

3. neck

4. upper chest above pectoral muscles

5. all fingers and superior shoulder, deltoid, and outer arm.



Thoracic spine innervation - Answer: 1. Chest, back

2. axilla

3. inner arms

4. abdomen

5. superior pelvic region



Lumbar spine innervation - Answer: 1. lower back

2. thighs, shins, toes

3. pelvic region



Sacral spine innervation - Answer: 1. rectum

2. posterior legs

3. heels

4. outer feet/ soles



Myotomes - Answer: muscle or groups of muscles innervated by a specific motor nerve