The adrenal glands are comprised of two parts--the cortex and medulla--that produce hormones (chemicals messengers that regulate body functions). The medulla, or inner part of the adrenal glands, produces the hormones norepinephrine and epinephrine, which regulate the fight or flight response in the body, the body's reaction to stressful events.
One cun = width of the thumb, in the middle, at the crease. or. One cun = the distance between the distal and proximal inter-phalangeal joints of the 3rd (middle) finger. One and 1/2 cun (1.5) = width of the two forefingers. Three cun = combined breadth of the four fingers, at the level of the pinky finger's first joint above the palm of the hand.
The largest unit of distance that I'm aware of is the gigaparsec (Gpc) or 1 billion parsecs. Astronomers use a method called parallax to measure the distance to some stars, and an object with a <b>par</b>allax of one <b>sec</b>ond is said to be 1 parsec away. This distance is 3.09x1016 meters, so a gigaparsec is 3.09x1025 meters.