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 Moon has no appreciable atmosphere. The sky is always black and the radiation from the Sun strikes with full force on the surface of the Moon. The lack of atmosphere produces temperature extremes on the Moon that range from -250 degrees F in the dark to +250 degrees F in the light.
Io's Atmosphere. Io's atmosphere comes from its volcanoes, then disperses because, as a small moon, Io does not have substantial gravity. Because the atmosphere comes from its volcanoes, the air of Io is made primarily of sulphur.o's Atmosphere. Io's atmosphere comes from its volcanoes, then disperses because, as a small moon, Io does not have substantial gravity. Because the atmosphere comes from its volcanoes, the air of Io is made primarily of sulphur.