What system extracts nutrients from food and eliminates waste products?
the digestive system
This organ makes gastric juices that break down the food and kill dangerous bacteria.
the stomach
Where are the nutrients absorbed into the blood?
The nutrients are absorbed into the blood through the small intestine.
This system takes oxygen from the air we breathe in and eliminates carbon dioxide.
the respiratory system
the trachea, bronchi, bronchioles, alveoli, and capillaries are a part of what system?
the respiratory system
What happens to the diaphragm and ribcage when we breathe in? (inhalation)
The diaphragm goes down and the ribcage expands.
What happens to the diaphragm and ribcage when we breathe out? (exhalation)
The diaphragm goes up and the ribcage contracts.
This system carries blood around the body.
the circulatory system
What are the four main components of our blood?
plasma, red blood cells, white blood cells, platelets
What are the 3 types of blood vessels?
arteries, capillaries, veins
The heart is divided into _____ chambers. What are they called?
4, they are called the right atrium, left atrium, right ventricle, and the left ventricle.
