Myasthenia Gravis,amyotrophic Lateral Sclerosis,Gullain-Barre Syndrome,spinal Cord Injuries,and Multiple Sclerosis May

Multiple Choice

Myasthenia gravis,amyotrophic lateral sclerosis,Gullain-Barre syndrome,spinal cord injuries,and multiple sclerosis may all lead to respiratory failure due to _______________

A) interference with the neurotransmission to the ventilatory muscles.
B) failure of the respiratory pump.
C) loss of nervous signals to contract for ventilation.
D) all of the above.