Skeletal System
The hard structures that support your body.
What are bones?
This organ starts digestion by chewing and mixing food with saliva.
What is the mouth?
These sacs inflate and deflate, bringing air into and out of the body.
What are the lungs?
Tiny cells which send signals to the brain.
What are neurons?
This organ pumps blood through the body.
What is the heart?
The place where two bones meet.
What is a joint?
Tiny air sacs in the lungs where gas exchange happens.
What are aveoli?
The central nervous system is composed of the brain as well as this long structure that extends down the back and is the connector between the brain and all other parts of the body.
What is the spinal cord?
Blood vessels that carry blood away from the heart.
What are arteries?
The part of a bone where blood cells are made.
What is bone marrow?
The millions of tiny finger-shaped structures that cover the inner surface of the small intestine and provide a surface area through which digested food is absorbed.
What are the villi?
The three main parts: brain, spinal cord, and _____.
What are nerves?
Blood vessels that carry blood back to the heart.
What are veins?
These bones are longer than they are wide and help you move, like the femur.
What are long bones?
This chemical aids in digestion by speeding up chemical reactions.
What is an enzyme (amylase)?
The control center of the nervous system.
What is the brain?
Tiny vessels where oxygen and nutrients move into cells.
What are capillaries?
These bones are thin and often curved to protect organs, like the ribs and skull.
What are flat bones?
Most nutrients are absorbed into the blood in this organ.
What is the small intestine?
The part of the brain that helps you think, learn, and remember.
What is the cerebrum?
The circulatory system works with the respiratory system to deliver _____.
What is oxygen?