Digestion begins in which part of the body?
Mouth
Which two places can air enter the body?
The nose and mouth
There are three types of blood vessels: _________, veins, and capillaries.
What part of the excretory system is letter A?
The kidneys
What two things do we get, or take, from the food we eat?
Nutrients and vitamins
What part of the digestive system is number 3?
What part of the respiratory system is letter E?
Trachea
What is the function of the heart?
The heart pumps oxygenated blood to the rest of the body.
Which part of the excretory system stores urine?
The bladder
Junk food
After food enters the mouth, what does it pass through to get to the stomach?
Esophagus
Which two tubes connect the trachea to the lungs?
Bronchi
What three types of cells make up, or are in, blood?
The three cells in blood are called red blood cells, platelets, and white blood cells.
What does the excretory system do?
The excretory system expels liquid waste.
What are two examples of how junk food can be bad for us?
We can gain weight and get sick with different illnesses.
What part of the digestive system is number 4? What happens to nutrients here?
It is the small intestine. Nutrients are absorbed and pass into the blood.
Where does gas exchange in the lungs take place?
Alveoli
The heart is divided into four chambers. The upper chambers are called atria. What are the lower chambers called?
The lower chambers are called ventricles.
Besides urine, what other waste does the excretory system expel, or eliminate?
Sweat
How do vitamins help us?
They help us to not feel tired or get sick easily.
Food is digested in how many stages? Name them.
Food is digested in three stages: digestion, absorption, and elimination.
Which gas do we breathe in and which gas do we expel?
We breathe in oxygen and expel carbon dioxide.
Explain how blood gets oxygenated.
Blood in the heart is pumped into the lungs where the red blood cells get oxygenated.
The kidneys filter the blood and remove extra water and waste, creating a liquid called urine.
What two types of foods should we eat more of? (example: fruits, grains, etc.)
We should eat more grains and vegetables.