Page 285 - New Medley 5 Semester 2

4. Wash your hands before and after eating food.

5. Exercise regularly to strengthen your body.

6. When you feel sick, consult the doctor immediately.

AT ONE GO

 For a healthy and long life, we need nutritious food, a pollution-free environment and proper medical
aid.
 The normal temperature of the human body is 98.4°F or 37°C.

 We can check the functioning of the lungs and the heart with the help of a stethoscope.
 A microscope is widely used for examining urine, blood, stool, sputum and many other types of
cells.
 Many types of vaccines have been developed to prevent the occurrence of diseases.
 We can remain healthy and strong by taking precautions in our daily life.

REMEMBER THESE TERMS

Transplantation : Replacement of an infected organ with a healthy one
Antibiotic : A chemical which can kill or destroy germs in the body
Vaccination : A medicine which prevents the occurrence of disease
Pasteurisation : The process of killing germs in food articles by heating

Check Your Study

A. Tick () the correct answers.

1. Which of the following instruments makes images of bones?

(a) Thermometer (b) X-ray machine (c) Stethoscope

2. Our body temperature in Fahrenheit is expressed as

(a) F° (b) °F (c) oF

3. Which of the following rays is used for surgical operations?

(a) Laser beams (b) X-ray beams (c) g-ray beams

4. During the 18th century, it was a dangerous disease.

(a) Fever (b) Typhoid (c) Smallpox

5. Pasteurisation is associated with
(a) milk (b) water (c) eggs

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