HEART
About how big is the human heart?
The size of a fist
How many lungs does a healthy person usually have?
Two
What happens when the brain sends a message to your hand to pick up a pencil?
The muscles in the hand move
What is the main job of the skin?
To protect the body from germs and injury
What is one important job of the pancreas?
Helping digest food
Which body system works directly with the heart to move blood around the body?
Circulatory system
What is the main job of the lungs?
To take in oxygen and remove carbon dioxide
The brain is part of which body system?
Nervous system
The skin is the largest ______ in the human body.
Organ
The pancreas helps control the amount of ______ in the blood.
Sugar
Which blood vessels carry blood away from the heart?
Arteries
What happens to the lungs when you breathe in?
They fill with air and expand
Which part of the body sends messages between the brain and the rest of the body?
Nerves
What does the skin produce to help cool the body down?
Sweat
Which body system does the pancreas help with when it breaks down food?
Digestive system
What happens to your heart rate when you exercise?
It beats faster
What gas do the lungs take in when we breathe?
Oxygen
4. What protects the brain from injury?
the Skull
Which of the following is another important job of the skin?
Protecting the organs inside your body
Where is the pancreas located?
Behind the stomach
Why does the heart beat faster during exercise?
To send more oxygen and nutrients to the muscles
What gas do the lungs remove from the body when we breathe out?
Carbon dioxide
Which of the following is something the brain helps control?
A. Thinking and memory
B. Breathing
C. Movement
All of the above
The skin helps you feel things like heat, cold, and pain because it contains:
Nerve endings
Why is the pancreas important for the body?
It helps control blood sugar and helps digest food