What does compent circles represent

important circle parts

Radius: the distance from the center of the circle to its outer rim.

Chord: A line segment whose endpoints are on a circle

Diameter: A chord that passes through the center of the circle

Hope this helps :)

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

i don't know. if i were you, i would search it up online : d