The pineal gland, a small yet vital organ within the human body. The pineal gland is a small, pea-shaped endocrine gland located deep within the brain, specifically between the two hemispheres. Despite its small size, it plays a crucial role in regulating several important biological functions.
Your pineal gland, also called the pineal body or epiphysis cerebri, is a tiny gland in your brain that’s located beneath the back part of the corpus callosum.
It’s a part of your endocrine system and secretes the hormone melatonin. Your pineal gland’s main job is to help control the circadian cycle of sleep and wakefulness by secreting melatonin.
The pineal gland is shaped like a tiny pinecone, which is how it got its name (“pine”-al gland). However, it is pronounced “pin-ee-uhl.”
The pineal gland is the least understood gland of the endocrine system, and it was the last part of the endocrine system to be discovered.