Class 5 EVS The Human Body Textbook solutions as well as Extra que answers.
A. Give one or two words for these.
I. The two openings or holes in the nose are called by this name.
2. Each bronchi divides into smaller tubes which are called by this name.
3. Tube-like structures that carry blood to different parts of the body.
4. The process of digestion is completed in this organ.
Answer-
Nostrils
Bronchioles
Blood vessels
Small intestine
B. State whether these statements are true or false.
1. Heart is a muscular organ whose function is to pump blood throughout our body.
2. Circulatory system contains heart, blood and blood vessels.
3. The food is carried to the stomach with the help of blood vessels.
4. The process of digestion is completed in small intestine.
Answer-
1. True
2. True
3. False (Food is carried to the stomach with the help of the food pipe, not blood vessels.)
4. True
C. Answer these in brief
1. What are the three parts of the brain?
The three parts of the brain are the cerebrum, cerebellum, and brain stem.
Each part controls different functions like thinking, balance, and involuntary actions.
2. What is respiration?
Respiration is the process of breathing in oxygen and breathing out carbon dioxide. This helps provide energy to the body through the exchange of gases in the lungs.
3. What is rate of heartbeat?
The rate of heartbeat is the number of times the heart beats in one minute.
It shows how fast or slow the heart is pumping blood.
D. Answer these in detail:
1. Describe the process of digestion.
Digestion begins in the mouth, where food is chewed and mixed with saliva.
It then passes through the food pipe to the stomach, where it is churned and mixed with digestive juices to form a semi-solid paste.
This paste moves to the small intestine, where digestion is completed and nutrients are absorbed into the blood.
2. How are lungs important?
Lungs are essential for breathing and gas exchange.
They take in oxygen when we inhale and remove carbon dioxide when we exhale.
Oxygen from the air enters the blood through the lungs, making them the air filters of the body and vital for survival.
Fill in the Blanks (with Answers):
1. The __________ protects the brain.Answer: Skull
2. The brain is connected to the body through the __________.Answer: Spinal cord
3. The __________ controls involuntary actions like heartbeat and breathing.
Answer: Brain stem
4. The __________ are soft, spongy organs used for breathing.Answer: Lungs
