11. Commander Eros ( Dudley Manlove ) informs their Ruler ( pituitary and pineal glands . 12. High threshold, NPY-positive neurons are vasoconstrictor neurons, which innervate the iris and pineal gland . 13. Melatonin is produced by the pineal gland during the night. 14. As the night begins, the eyes signal the pineal gland to start pumping melatonin. 15. Interestingly, the tuatara's pineal gland functions as a third eye. 16. Connected to the optic nerve, the pineal gland is sensitive to light and darkness. 17. This may contribute to lowered levels of monoamines in aged brain and pineal gland . 18. The doctors are able to operate on her pineal gland . 19. And, hum, removing the Pineal gland from the " Symbols and Mythological Personas " list. 20. The pineal gland consists mainly of pinealocytes, but four other cell types have been identified.
