Orthopaedics

Correct Answer - D
Answer- D. All
Acro-osteolysis is the term used to describe resorption of the
distal phalangeal tufts. Causes are : -
1. Scleroderma
2. Trauma & thermal injury
3. Hyperparathyroidism
4. Epidermolysis bullosa
5. Arthropathy (RA, Psoriasis)
6. Neuropathy (diabetes, syringomyelia)
7. Raynaud's disease
8. Reiter's syndrome

Correct Answer - C
Ans. C. Synovial joint
The sixth, seventh, eighth, ninth and tenth costal cartilages are
jointed with each other along the borders by synovial joints.
Costochondral joint means the joint between the rib and its costal
cartilage.
The first costal cartilage of both sides attach to the manubrium
sterni. At this joint, no movement is possible.
The second costal cartilage articulates with the body of sternum and
the manubrium sterni by a synovial joint where movement is
possible.
The third to seventh costal cartilages articulate with lateral border of
the body of sternum at mobile synovial joints.