NLI above T12 : risk for some degree of respiratory dysfunction1) T12~T5 NLI : abdominal m. and intercostals ... NLI at or below C5 : able to breathe without assistancebut difficulty (secretory problem, atelectasis ... m. are weakenedimpaired forceful ventilation and cough2) T5~T1 NLI (High-thoracic)(1) intercostals are