Locomotion and Movement Question 20
20. Select the correct statement with respect to locomotion in humans :
(a) Accumulation of uric acid crystals in joints causes their inflammation.
(b) The vertebral column has 10 thoracic vertebrae .
(c) The joint between adjacent vertebrae is a fibrous joint .
(d) The decreased level of progesterone causes osteoporosis in old people .
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Answer : a
Hints & Solutions
(a) Vertebral column has 12 thoracic vertebrate. The joints between adjacent vertebrae is cartilaginous joint which permits limited movements. Progesterone is secreted by corpus luteum which supports in pregnancy in females. Deposition of uric acid in form of urate crystal in the joints are responsible for the inflammation and painful symptoms of gout.
