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प्रश्न
Why do we sweat?
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उत्तर
Sweat palys an important role in maintaining body temperature. The human body functions normally at a temperature of about 37°C. When it gets hot sweat glands start secreting sweat, which contains water with small amounts of other chemicals like ammonia, urea, lactic acid and salts. This helps in cooling the body.
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संबंधित प्रश्न
Explain the differences.
External and internal respiration
Take a large sheet of thick paper, about the height of a child in the class. Put it on the wall as shown in the picture and secure it with tapes. Ask one student to stand against it and another to draw the outline of the body. Now get other students to point out the right places of the following organs within the outline - the brain, lungs, heart, and stomach. Now recall the following details about each of the organs. (1) In which cavity of the body is it situated? (2) What is its function? (3) Which are the bones that protect it?
Which organ controls thinking, speaking, and learning. Write its three important parts.
What will happen if the diaphragm shows no movement?
Name the processes by which air enters and comes out of our lungs.
The human body functions normally at a temperature of about _____
Match the following.
| Organ | Elimination | |
| Skin | a. | Urine |
| Lungs | b. | Sweat |
| Intestine | c. | Carbon dioxide |
| Kidneys | d. | Undigested food |
Higher Order Thinking Skill
Can you guess why there are sweat glands on the palm of our hands and the soles of our feet?
Which is the largest organ in the human body?
______ acts as a thermoregulatory organ.
