 |
| Previous Image | Next Image |
| Description: Cells in the retina send messages about light levels to the suprachiasmatic nucleus, which in turn relays the information to the pineal gland, which secretes melatonin.
Picture Stats: Views: 307 Filesize: 282.02kB Height: 407 Width: 568 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=23871 |