spastic paralysis

False. Flaccid is the opposite of rigid. For example, in the medical field, there's flaccid paralysis and rigid paralysis. Flaccid paralysis is when a body part is unable to be moved, but there is no muscle tone. The body part is "floppy." Rigid paralysis is when the body part is unable to be moved, but there is a lot of muscle tone. The body part is "stiff."

Parkinson's

No, generally these are two separate issues. In flaccid paralysis, the muscles may be intact, but unable to contract due to chemical or electrical problems. Atrophy refers to the loss of muscle strength, tone, and size often due to disuse. Over time, paralysis could lead to atrophy from the disuse.

Flaccid paralysis an abnormal condition characterized by the weakening or the loss of muscle tone. It may be caused by disease or by trauma affecting the nerves associated with the involved muscles

Spastic Paralysis characterized by spasms and ↑ tendon reflexes of the muscle(s) in the paralyzed region, due to upper motor neuron disease