Available Answers

1. 1.

   Fill in the blanks.

   Blood cells are made of _________. _________ cells fight infection. _________ cells carry oxygen.

2. 2.

   Write T for the True statement and F for the False one. Also write out the corrected sentences for the false ones.

   1. There are a thousand muscles in the body.
   2. The heart is made of muscle.
   3. Muscles are made of tendons.
   4. Muscles work on their own.
3. 3.

   Draw a table like the one below in your notebook. Fill it in using the information in this section. How many bones have you listed? How many are not mentioned?

   Body part	Number of bones
   Skull
   Face

    

4. 4.

   Choose the correct option.

   1. The number of vertebrae in the backbone is:
      1. 20
      2. 26
      3. 33
      4. 46
   2. Some of the systems of the body are:
      1. skeletal
      2. muscular
      3. nervous
      4. transport
   3. The bones of the body are filled with a substance called:
      1. marrow
      2. muscle
      3. tissue
      4. serum
   4. Examples of hinge joints are:
      1. elbow
      2. knee
      3. hip
      4. toe
   5. The anvil is a bone in the:
      1. spine
      2. knee
      3. shoulder
      4. ear
5. 5.

   Match the following.

   1. femur	a. backbone
   2. vertebrae	b. tough tissue
   3. skeleton	c. thigh bone
   4. ligaments	d. involuntary
   5. cardiac muscles	e. 206 bones

    

6. 6.

   Mark the sentences √ or x. Correct the mistakes and rewrite the sentences.

   1. Bones are joint together by tendons.
   2. The largest bone in the body is the femur.
   3. The skull is made up of twelve flat bones.
   4. The heart is a voluntary muscle.
   5. Involuntary muscles move when you want them to.
   6. The bicep is a muscle in the arm.
   7. The heart is part of the skeletal system.
   8. There are over 650 bones in the body.
   9. The hip is an example of a hinge joint.