Final answer:
Spasticity is a muscle condition involving resistance to stretch following brain injury. It contrasts with myasthenia gravis and muscular dystrophy.
Explanation:
Spasticity:
Spasticity is the muscle condition characterized by resistance to stretch and can occur following brain injury. It involves increased muscle tone, stiffness, and involuntary muscle contractions. A common example of spasticity is seen in conditions like cerebral palsy or after a stroke.
Myasthenia gravis:
Myasthenia gravis, on the other hand, is a neuromuscular disease characterized by muscle weakness and fatigue, often due to antibodies attacking acetylcholine receptors at the neuromuscular junction.
Muscular dystrophy:
Muscular dystrophy is a group of genetic disorders causing progressive muscle weakness and degeneration. It is different from spasticity and myasthenia gravis.
Learn more about Spasticity here:
https://brainly.com/question/40884882
