Pinealotsüüdid
Pinealotsüüdid are specialized cells found in the pineal gland of vertebrates. The pineal gland is a small endocrine gland located in the brain that plays a crucial role in regulating sleep-wake cycles and producing melatonin. Pinealotsüüdid are the primary functional cells of this gland, responsible for synthesizing and secreting melatonin in response to light and dark cues. They are characterized by their abundant cytoplasm, large, round nuclei, and numerous vesicles containing secretory products.
These cells are influenced by the suprachiasmatic nucleus, the body's master biological clock, which receives light