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प्रश्न
Why it is important to wear helmet while riding a bike?
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उत्तर
Wearing a helmet helps to protect your life and protect your head from danger. The head and brain are the most vulnerable to injury in a motorcycle accident. Drivers and passengers wearing helmets increase their chances of survival over non-helmet wearers. Riders who do not wear helmets are at risk of suffering a traumatic brain injury if they are in an accident. Brain trauma often results in spinal cord injuries and disability that requires extended care and physical therapy. The damaged brain may deteriorate after hospitalization and die days to weeks after the injury due to secondary injury.
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संबंधित प्रश्न
Where is digested food absorbed into blood in human body?
What causes movement of food inside the alimentary canal?
If the teeth are not cleaned regularly, they become covered with a sticky yellowish layer W of food particles and bacteria. Since layer W covers the teeth, the alkaline liquid X secreted by glands Y inside the mouth cannot reach the teeth surface to neutralise the acid formed by the action of organisms Z on sugary food, and hence tooth decay sets in.
(a) What is W known as?
(b) What is (i) X, and (ii) Y?
(c) What are organisms Z?
(d) State one way of removing layer W from the teeth.
How is the liver an important organ in our body?
Name the organ where the juice bile is temporarily stored.
How is the small intestine best suited for the digestion and absorption of food?
Write true or false for the below statement. Rewrite the false statements correctly.
The wave-like motion of stomach muscles to push the food is called peristalsis.
State whether the following statements are True or false: Pancreatic amylase digests protein into amino acids.
Pushing forward the food that has been chewed is the function of the ______.
State whether true or false. If false, correct the statement.
During digestion, proteins are broken down into amino acids.
