Select the correct statement with respect to locomotion in humans

Options

A. 1)The vertebral column has 10 thorac- ic vertebrae
B. 2)The joint between adjacent vertebrae is a fibrous joint
C. 3)A decreased level of progesterone causes osteoporosis in old people.
D. 4)Accumulation of uric acid crystals in joints causes their inflammation.

Answer

4

Explanation

(1) Wrong as vertabral column has 12 thoracic vertebre . (2) Wrong as joint between adjacent vertebrae is a Cartilagenous joint which permits limittied movement . (3) Wrong Osteoporosis is a decrease in bone mass due to a decreased level of estrogen and not progesterone in old age. (4) Correct , as accumulation of uric acid crytals cause inflammation of joints called Gout