Excessive formation of uric acid may result in

Match List-$I$ with List-$II$ related to the muscular/skeletal system:

List-$I$	List-$II$
$A$. Tetany	$I$. Inflammation of joints
$B$. Arthritis	$II$. Autoimmune disorder affecting neuromuscular junction
$C$. Myasthenia gravis	$III$. Wild contraction in muscle due to low $Ca^{++}$ in body fluid
$D$. Muscular dystrophy	$IV$. Progressive degeneration of skeletal muscle

Choose the correct answer from the options given below:

Osteoporosis,an age-related disorder of the skeletal system,is characterized by:

Which of the following is an autoimmune disorder?

In which of the following conditions does progressive degeneration of skeletal muscles occur?

$A:$ Myasthenia gravis is a protozoan caused disorder.
$B:$ It is affecting the neuromuscular junction leading to fatigue,weakening and paralysis of skeletal muscle.