The correct answers are the following.
1.- In a sprain, the ligaments reinforcing a joint are excessively stretched or torn: T.
2.- Age-related erosion of articular cartilages and formation of painful bony spurs are characteristics of gouty arthritis: osteoarthritis.
3.- Chronic arthritis usually results from bacterial invasion: Acute.
4.- Healing of partially torn ligament is slow because its hundreds of fibrous strands are poorly aligned: vascularized.
5.- Rheumatoid arthritis is an autoimmune disease: T.
6.- High levels of uric acid in the blood may lead to Rheumatoid arthritis: Gouty arthritis.
7.- A "soft" bone condition in children, usually caused by a lack of calcium or vitamin D in the diet is called osteomyelitis: Rickets.
8.- Atrophy and thinning of bone owing to hormonal changes or inactivity (generally in the elderly) is called osteoporosis: T.