Articulations between adjoining bones
A tough, fibrous, insoluble protein forming the primary component of the skin, hair, nails, and tooth enamel
THe dead cells of the epidermis
Found within the villi of intestinal wall, where fat nutrients are absorbed
Tissue connecting bone to bone
Space within the thoracic cavity that houses all the organs of the chest except the lungs
the sum total of uses of ATP in the body
Thin sheets of tissue cells that line body openings or canals that open to the outside of the body
A protein that makes up nearly half of the proteins in muscle cells
The control center of the cell
Cavities containing the eyes
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 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.