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Pineal gland Definition and Explanation PDF | Download eBooks

Learn Pineal gland definition in biology with explanation to study “What is Pineal gland”. Study pineal gland explanation with biology terms to review biology course for online degree programs.

Pineal gland Definition:

  • Pineal gland is an important glasnd that produces melatonin.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson

Pineal gland Explanation:

The pineal gland is a small endocrine gland in the brain of most vertebrates. The pineal gland produces a serotonin-derived hormone called melatonin which modulates sleep patterns. The shape of the gland is similar to a pine cone from which originated its name. The pineal gland is located in the epithalamus which is near the center of the brain, between the two hemispheres. The pineal gland is part of the neuroendocrine secretory organs and these are not part of the blood-brain-barrier.

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