Pineal Gland (Noun)
Meaning
A small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin.
Classification
Nouns denoting body parts.
Examples
- The pineal gland plays a significant role in regulating sleep patterns and wakefulness.
- In ancient times, philosophers such as Descartes considered the pineal gland to be the seat of the soul.
- Melatonin secreted by the pineal gland helps to control reproductive hormones in some animals.
- The pineal gland's primary function is to convert serotonin to melatonin during the night.
- Damage to the pineal gland can disrupt sleep-wake cycles and lead to health problems.