Some human parts of body are of exactly the same size

Human body is complex system and is made up of many organs. Some human parts of body are of exactly the
same size, these so much surprizing. Which parts are of same size are enlisted below:
The size of human heart is same as the size of close hand.

Length of human nose is same as the length of thumb of hand.

Size of human foot is same as the size of wrist up to elbow.

Ear is of same length as the length of thumb.
The height of a human body is same as the arms stretched away fully.