Page 45 - Active Science 5 Ebook and Activity

D. State whether the following statements are true or false.

1. Sensory nerves carry messages from sense organs to brain or spinal cord
to the body parts. _____

2. Motor nerves carry messages from sense organs to brain or spinal cord. _____
3. The eye is covered by a transparent covering called cornea. _____

4. The vertebrae are hollow ring–like structures. _____
5. Ligaments provide lubrication to joints. _____
6. Muscles of the digestive system are involuntary. _____

E. Give one word for each.
1. Ribs attached only to the backbone _______________

2. Organs protected by ribcage _______________
3. Joints that allow back and forth movement _______________

4. The automatic actions controlled by the spinal cord _______________
5. A nerve which carries messages from the nose to the brain _______________

6. Small bones that protect the spinal cord _______________

F. Short Answer Questions.
1. Why do we feel pain when our bone breaks?

2. Define ligament.
3. Mention two tips for eye care.

4. Name any two functions of nervous system.
5. Explain reflex action with the help of an example.
6. Define a joint.

G. Long Answer Questions.

1. Explain any three types of joints with examples.
2. Differentiate between voluntary and involuntary muscles.

3. Differentiate between ligament and tendon.
4. Name the three types of nerves. What functions do these nerves perform?
5. How can you take care of your eyes?

6. What are sense organs? Explain briefly the functions of each sense organ.
7. Discuss the structure and number of bones in our limbs.
8. List all types of movable joints in our body. Describe hinge joint and pivot joint.

I. Draw the diagram of human skeleton and label all the parts.

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Active Science-5