Question

Select the correct statement with respect to locomotion in humans.

• A. A decreased level of progesterone causes osteoporosis in old people.
• B. Accumulation of uric acid crystals in joints causes their inflammation.
• C. The vertebral column has 10 thoracic vertebrae.
• D. The joint between adjacent vertebrae is a fibrous joint.

Answer 1

The correct option is B Accumulation of uric acid crystals in joints causes their inflammation.

When Uric acid is not properly excreted from the body, for eg. in Gout, it gets deposited in the form of crystals in the soft tissue of joints.T his causes inflammation and makes joints painful.

Progesterone is a female sex hormone which regulates menstrual cycles and is crucial during pregnancy. Oestrogen (another female sex hormone) deficiency, is the commonest cause of osteoporosis in females.

There are 12 thoracic vertebrae in the vertebral column.

The joint between adjacent vertebrae is a synovial joint.

Thus, option B is correct.