Circulatory System
What organ pumps blood through your body?
The heart
What organ do we use to breathe in and out?
Lungs
What are the living things called that cause diseases by infecting other living things?
Parasites
The heart is located in your legs.
The heart is located in your chest, not your legs.
The main function of the circulatory system is to ___.
transport blood, oxygen, and nutrients to the body.
What are the tiny blood vessels called that connect arteries and veins?
Capillaries
What is the name of the tube that connects the throat to the lungs?
Trachea (or windpipe)
What do we call the living thing that is infected by a parasite?
Host
We breathe in carbon dioxide and breathe out oxygen.
We breathe in oxygen and breathe out carbon dioxide.
When we breathe in, we take in ___.
oxygen
What is the red liquid that carries oxygen and nutrients through the body?
Blood
What gas do we breathe in from the air?
Oxygen
What type of small living things can cause diseases such as cholera and pneumonia?
Bacteria
Veins carry blood away from the heart.
Veins carry blood back to the heart.
Good hygiene means keeping ourselves and the things around us ___.
clean
What is the name of the blood vessels that carry blood away from the heart?
Arteries
What gas do we breathe out?
Carbon dioxide
What are the smallest infectious agents that can cause diseases in humans, animals, and plants?
Viruses
Lungs help pump blood through the body.
The heart pumps blood, not the lungs.
Some parasites cause infectious diseases like ___ and dysentery.
malaria
What is the main function of the circulatory system?
To transport blood, oxygen, and nutrients to the body's cells.
What small air sacs in the lungs help with the exchange of gases?
Alveoli
Which type of fungus can cause diseases like ringworm and athlete's foot in humans?
Fungi
Capillaries are large blood vessels that carry blood to the lungs.
Capillaries are tiny blood vessels; arteries carry blood to the lungs.
Keep wounds covered with a plaster and do not touch other people's open ___.
wounds