In this article, we will solve 10 MCQs on Biomechanics (Part-VI). So, let’s get started.
Question and Answer (Correct answer in bold)
1. Skeletal muscles in a normal adult contribute:
- (a) 10-15% to the total body weight
- (b) 15-20% to the total body weight
- (c) 40-50% to the total body weight
- (d) 0-5% to the total body weight
2. The frequency of post-traumatic osteonecrosis of femoral head is highest in which age group:
- (a) 1-10 yrs
- (b) 10-30 yrs
- (c) 30-60 yrs
- (d) Above 60 yrs
3. The frequency of aseptic necrosis of femoral head in hip dislocations is highest in:
- (a) Children
- (b) Adolescent
- (c) Adults
- (d) Old persons
4. Length growth of bone is accomplished by:
- (a) Periosteum
- (b) Epiphysis
- (c) Metaphysis
- (d) Epiphyseal plate
5. The first bone to ossify in fetal life is:
- (a) skull
- (b) vertebrae
- (c) clavicle
- (d) femur
6. The most uncommon site for secondary deposits in bone is:
- (a) skull
- (b) spine
- (c) pelvis
- (d) calcaneum
7. The following bone is a pneumatic bone:
- (a) patella
- (b) pisiform
- (c) maxilla
- (d) 12th pair of rib
8. The best technique to demonstrate the orientation of collagen fibers within bone:
- (a) toluidine blue strain
- (b) H&E strain
- (c) polarized light
- (d) ultraviolet light
9. The structure responsible for longitudinal growth is:
- (a) Epiphysis
- (b) Epiphyseal plate
- (c) Metaphysis
- (d) Diaphysis
10. The precartilagenous analog to bone arises from:
- (a) ectoderm
- (b) endoderm
- (c) mesenchyme
- (d) none of the above
(Note: Correct answer in bold)