Our body grade 3

Our pulse rate increases after exercise.

• Our pulse rate increases after exercise in order to pump more blood to get more oxygen.

• Our pulse rate increases after exercise in order to pump more blood to get energy.

Choose the odd one out:

Heart, blood vessels, lungs, blood

• lungs

• blood

• heart

• blood vessels

Which of the two systems help us to move?

• respiratory and excretory system

• digestive and skeletal system

• muscular and skeletal system

After the food goes to the mouth, it goes to the

• gullet

• trachea

• veins

• arteries

Our arms and legs are called

• limbs

• limping

Nervous system does

• control our actions

• give blood to different parts of the body

What is the main function of the heart?

• To pump blood throughout the body

• To filter waste from the blood

Which organ is primarily responsible for breathing?

• Heart

• Lungs

• Kidneys

What system is responsible for transporting nutrients in the body?

• Nervous system

• Circulatory system

• Muscular system