Disorders of the Skeletal System

Q. Rickets is due to deficiency of vitamin _________.

1. D
2. C
3. B
4. A

Q. Osteomalacia is a deficiency disease of

1. Infants due to protein energy malnutrition
2. Adults due to protein-energy malnutrition
3. Infants due to vitamin-K deficiency
4. Adults due to vitamin-D deficiency

Q. Paget’s disease is caused by

1. Prolonged deficiency of vitamin D in adults
2. Abnormal bone resorption
3. Excess of alkaline phosphatase
4. Excess production and abnormal segregation of collagen

Q. The disease that occurs in mature adult human being due to deficiency of calciferol is

1. Glossitis
2. Pernicious anaemia
3. Keratomalacia
4. Osteomalacia

Q. Lack of relaxation between successive stimuli in sustained muscle contraction is known as

1. Spasm
2. Fatigue
3. Tetanus
4. Tonus