Human Body Systems

What is digestion?

• The process of moving air in and out of the lungs

• The process of storing energy in the muscles

• The process of pumping blood throughout the body

• The process of breaking down food into simpler substances the body can use

What is the main role of the digestive system?

• To make you sleepy

• To break down food into nutrients

• To make the body blush

• To help you breathe

What is the role of the respiratory system?

• To break down food into usable energy

• To transport nutrients throughout the body

• To control body movements and coordination

• To exchange oxygen and carbon dioxide between the body and the environment

Where does the oxygen we breathe in go first?

• To the stomach

• To the heart

• To the feet

• To the nose

How do the digestive system and respiratory system work together?

• The digestive system puts nutrients in the blood, and the respiratory system puts oxygen in the blood; the blood carries both for energy.

• The digestive system sends food straight to the muscles, and the respiratory system sends oxygen straight to the muscles.

• The digestive system turns food into oxygen, and the respiratory system turns air into sugar for the body.

• The digestive system saves food in the stomach, and the respiratory system saves air in the lungs.

Click on the functions that involve the reproductive system.

Drag the following organs to the correct body system.

Groups:

(a) Digestive System

,

(b) Respiratory System

,

(c) Reproductive System

• egg cell

• pancreas
• stomach

• alveoli
• sperm cell

• fallopian tube
• trachea
• lungs
• small intestine

• ovary
• uterus
• diaphragm
• liver

What happens when nutrients and oxygen meet in your cells?

• They create energy

• They make you hungry

• They make you sleepy

• They make you blush

How can you take care of your body?

• By eating a balanced diet and exercising

• By sleeping all day

• By holding your breath

• By eating junk food