Multiple choice questions.

1. Which organ system of our body provides strength and support?
   1. Digestive system
   2. Muscular system
   3. Skeletal system
   4. Nervous system
2. Which organ of our body requires calcium and phosphorus for its proper development?
   1. Lung
   2. Heart
   3. Nose
   4. Bone
3. Eight flat bones in our body are interlocked together to form the:
   1. limb
   2. cranium
   3. backbone
   4. ribcage
4. How many bones are present in our face?
   1. 14
   2. 8
   3. 33
   4. 27
5. The last two pairs of ribs are attached to the:
   1. backbone only
   2. sternum only
   3. both backbone and sternum
   4. skull
6. The longest bone of our body is the:
   1. tibia
   2. fibula
   3. stapes
   4. femur
7. Which of the following tissues connects the bones to the muscles?
   1. Tendon
   2. Ligament
   3. Cartilage
   4. All of these
8. Cardiac muscles are structurally like:
   1. voluntary muscles
   2. involuntary muscles
   3. biceps muscles
   4. tricep muscles

Fill in the blanks.

1. Voluntary muscles help in ______________ our body posture.
2. The muscles which are under our control are ______________ muscles.
3. ______________ joint is found between the wrist and the ankle.
4. Ligaments connect bones to ______________.
5. ______________ bone is present in our upper arm.

How do our muscles work?

What kind of joints help the legs to move in all directions?

Write the important functions of the skeleton.