(also pineal gland, pineal body)
Definition of pineal in English:
A pea-sized conical mass of tissue behind the third ventricle of the brain, secreting a hormonelike substance in some mammals.
- Other distinct anatomic structures such as the pineal gland and third ventricle could not be identified due to autolysis.
- The cells of the suprachiasmatic nucleus send signals to other parts of the brain, especially the pineal gland, initiating hormonal and nerve signals that synchronize the body and the brain to the biological clock.
- Melatonin is a hormone secreted at night by the pineal gland of the brain.
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Spain
Most popular in Malaysia
Most popular in Pakistan