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.
A unit of length used in measuring astronomical distances within the solar system or other planetary system equal to the mean distance from Earth to the sun, approximately 150 million kilometers (93 million miles).