Describe two condtions that affect the muscular system?

1. Muscular dystrophy: Muscular dystrophy is a group of genetic disorders that cause progressive weakness and degeneration of the muscles.There are different types of muscular dystrophies, each affecting different muscles in the body. Symptoms may include muscle weakness, difficulty walking, muscle pain, and deformities.

2. Myasthenia gravis: Myasthenia gravis is a chronic autoimmune disorder that affects the communication between nerves and muscles. It leads to muscle weakness and fatigue that worsens with activity and improves with rest. Symptoms may include drooping eyelids, double vision, difficulty swallowing, and muscle weakness in the arms, legs, and trunk.