Fill in the boxes with the names of the main types of joints in the skeletal system. Give one example of each joint in the body.

Multiple Choice Questions (MCQs)

1. Which of these protects the heart?
   1. Skull
   2. Spine
   3. Rib cage
   4. Hip bones
2. Which of these is true for the bones in the skull?
   1. No bones are movable
   2. All bones are movable
   3. Only the upper jaw bone is movable
   4. Only the lower jaw bone is movable
3. In which of these joints can the bones move only in an up and down direction?
   1. Hinge
   2. Ball and socket
   3. Pivot
   4. Sliding
4. How do the biceps and triceps make the arm move up and down?
   1. Both biceps and triceps push the bones
   2. Both biceps and triceps pull the bones
   3. Biceps pull and triceps push the bones
   4. Triceps pull and biceps push the bones
5. Which of these muscles are not in our control?
   1. Biceps
   2. Triceps
   3. Heart muscles
   4. All voluntary muscles

Fill in the blanks.

1. The ____________ system gives the body its shape.
2. The ____________ribs are not joined to the breastbone.
3. The knee has a _____________ joint.
4. Blood cells are made in the bone _______________.
5. The _____________ hold bones together at the joints.
6. The muscles are attached to the bones by ______________.

Put √ for true, and Χ for false.

1. Bones are hard on the outside but soft inside.
2. An adult has about 300 bones.
3. The skull contains several movable bones.
4. If you exercise your muscles, they become stronger.