Chromaffin cell. Chromaffin cells, also pheochromocytes, are neuroendocrine cells found mostly in the medulla of the adrenal glands (located above the kidneys) in mammals.
The elements sodium (Na) and potassium (K) have been detected in the Moon's atmosphere using Earth-based spectroscopic methods, whereas the isotopes radon -222 and polonium -210 have been inferred from data obtained by the Lunar Prospector alpha particle spectrometer.
by Brian Ventrudo. The Moon doesnât have a dense atmosphere like Earth, but it does retain just enough of an ultra-thin layer of atoms to make things interesting. This thin gaseous layer, which is some 100 trillion times thinner than Earthâs atmosphere, is called an exosphere.