10:14 AM
Observe the diagram. What do you inter from the following diagram?
18. Write a short note on
D skull ii) Rib cage
19. List some safety measures to be followed while handling electric appli
Answers
Answer:
18.i)Skull is a bony structure which forms the head in the human body. This structure basically supports the structures of face as well as it also forms the cavity of brain. The skull is composed of two set of bones- cranial and facial bone that totals to 22 bones.
ii)Rib cage consists of 12 pairs of ribs, sternum, xiphoid process, costal cartilages and 12 thoracic vertebrae. It protects heart, lungs and diaphragm. It provides a framework on which the muscles of the shoulder girdle, chest, upper abdomen and back can attach. It also plays important role in the respiration.
19.15 Safety Precautions When Working With Electricity
Avoid water at all times when working with electricity. ...
Never use equipment with frayed cords, damaged insulation or broken plugs.
If you are working on any receptacle at your home then always turn off the mains. ...
Always use insulated tools while working.