made of all the bones in your body
pigment that gives your skin color
an organ taht can relax, contract, and provide force to move you and your body parts
the substances in food that provide for cell development, growth, and repair
system made of structures and organs that help move oxygen into the body and waste gases out of the body
grapelike clusters of air sacs at the end of each bronchioles
microscopic blood vessels that surround each alveolus
an involuntary, automatic response to a simulus
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.
NEW! Voice Recording
Click the mic to start.