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.
Like Mercury, the atmospheres of all of these moons are too thin to generate any winds or weather to speak of. The only moon with a fairly thick atmosphere is Saturn's largest satellite Titan. Titan's atmosphere is even denser and produces a greater surface pressure than Earth's.