Human Body Quiz

The following diagram shows the organs of the human digestive system. One organ uses strong acids to break down food into smaller pieces. Which organ is responsible for this first step?

1. Large Intestine
2. Oesophagus
3. Small Intestine
4. Stomach

Answer: (d) Stomach

Look at the following descriptions of parts of the circulatory system: Part 1: A blood vessel that carries oxygen-rich blood from the heart to different parts of the body. Part 2: A tiny blood vessel where oxygen and carbon dioxide are exchanged between blood and body cells. Which of these parts are arteries and which are capillaries?

1. Part 1: Arteries, Part 2: Capillaries
2. Part 1: Capillaries, Part 2: Arteries
3. Both are arteries
4. Both are capillaries

Answer: (a) Part 1: Arteries, Part 2: Capillaries

Sam squeezes a rubber ball continuously for 2 minutes. By the end of the experiment, his hand feels tired. What caused Sam’s hand to feel tired?

1. His heart stopped pumping blood to his hand.
2. The muscles in his hand used up too much energy.
3. His bones became too weak to hold the ball.
4. The rubber ball was too heavy for his hand muscles.

Answer: (b) The muscles in his hand used up too much energy.

Look at the diagram of the human respiratory system below. Which statement best explains how the lungs help in breathing?

1. The lungs protect the body from germs.
2. The lungs help filter the air we breathe before it enters the body.
3. The lungs pump blood to the brain for thinking.
4. The lungs are where oxygen from the air enters the body, and carbon dioxide is released.

Answer: (d) The lungs are where oxygen from the air enters the body, and carbon dioxide is released.

Match the organ of the respiratory system with its function. Organ Function A. Nose 1. Helps push air in and out of the lungs when we breathe B. Windpipe 2. Filters and breathes air C. Lungs 3. Carries air to lungs D. Diaphragm 4. Exchanges oxygen and carbon dioxide with the blood

1. A-1, B-2, C-3, D-4
2. A-2, B-3, C-4, D-1
3. A-1, B-2, C-4, D-3
4. A-2, B-4, C-1, D-3

Answer: (b) A-2, B-3, C-4, D-1

If a person’s ribcage were damaged, which of the following might happen?

1. The person will not be able to swallow food or water.
2. Their arms and legs would stop bending.
3. Their heart and lungs might be less protected.
4. Their bones would lose shape and support.

Answer: (c) Their heart and lungs might be less protected.

Read the statements below about the muscular system and select the correct option. 1. Muscles help your body move by contracting and relaxing. 2. Muscles can grow when you stretch them too much. 3. All muscles are attached to bones, which helps in movement.

1. All are true
2. Statement 1 is false
3. Statement 2 is false
4. Statement 3 is false

Answer: (c) Statement 2 is false

Carefully read the given passage and answer the following questions. The Body’s Lifeline for Blood and Health The circulatory system is responsible for transporting blood throughout the body. This system includes the heart, blood vessels, and blood. The heart is a muscle that pumps blood, the blood vessels are like highways that carry the blood, and blood is the liquid that carries oxygen, nutrients, and waste throughout the body. The circulatory system helps maintain the health of every organ and tissue, ensuring they get what they need to function. Without a healthy circulatory system, the body wouldn't be able to work properly. Identify the INCORRECT statement related to the circulatory system.

1. The heart pumps blood throughout the body.
2. Blood vessels carry oxygen and nutrients to organs.
3. The circulatory system does not help remove waste from the body.
4. Blood flows through veins back to the heart.

Answer: (c) The circulatory system does not help remove waste from the body.

Carefully read the given passage and answer the following questions. Muscles and Bones: The Dynamic Duo That Helps Us Move The muscular and skeletal systems work together to help us move, stand, and perform everyday activities. The skeletal system is made up of bones that give shape and support to our body. Some bones, like the skull, protect important organs like the brain. The ribcage protects the heart and lungs. Joints, where two bones meet, allow us to bend and move. Imagine you are designing a helmet for safety. What is the main reason to make the helmet strong?

1. To protect the brain like the skull does
2. To protect the head from getting too cold.
3. To keep the head from getting wet.
4. To give shape to the head like muscles .

Answer: (a) To protect the brain like the skull does

Carefully read the given passage and answer the following questions. Muscles and Bones: The Dynamic Duo That Helps Us Move The muscular and skeletal systems work together to help us move, stand, and perform everyday activities. The skeletal system is made up of bones that give shape and support to our body. Some bones, like the skull, protect important organs like the brain. The ribcage protects the heart and lungs. Joints, where two bones meet, allow us to bend and move. What will happen if a person’s bones were not strong enough to support their body?

1. The person's skin would stop protecting the body.
2. The muscles would take over and provide support instead.
3. The person would not be able to stand or move properly.
4. The person's blood circulation would completely stop.

Answer: (b) The muscles would take over and provide support instead.