Answer:
Myasthenia gravis is a Latin word, it's means “grave muscle weakness.” Myasthenia gravis is a neuromuscular disease that leads to skeletal muscle weakness and fatigue.
Step-by-step explanation:
The muscles fail to contract as they are unable to respond to nerve impulses mainly due to the blockage of acetylcholine receptors at the postsynaptic neuromuscular junction (the place where muscle connect to the nerve cell).
The symptoms of myasthenia gravis are given below...
* Problems in lifting objects
* Walking up stairs
* Difficulty while talking
* Difficulty of swallowing food.
* Difficulty in breathing
* Double vision due to weakness of
eye muscle
* Hoarse voice
* Difficulty on facial expression