Match the following______
Column I Column II
i. Myasthenia gravis a. Accumulation of uric acid
ii. Osteoarthritis. b. new bone creation doesn't keep up with old bone removal
iii. Gouty arthritis. c. wearing down of the cartilage in older people.
iv. Osteoporosis. d. Autoimmune response to neuromuscular junction
The breaking down of the immune system is the characteristic of which of the following disease?