Anatomy study note · Head and neck

Pineal body

A small cone-shaped gland projecting back from the roof of the third ventricle between the superior colliculi.

Key points

• Roof of the third ventricle, between the superior colliculi.
• Calcifies → radiographic landmark.
• Mainly inhibitory hormones.
• Pinealocytes make melatonin at night.

The full note in the atlas also covers

Features · Action · Histology · Development

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Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 12, PDF pp. 1565, 1811
• Inderbir Singh’s Human Embryology, ch. 17, PDF pp. 336–338
• BRS Cell Biology & Histology, 7th ed., ch. 13, PDF pp. 248–249

More from the head and neck

• Piriform cortex
• Pituitary gland
• Platysma
• Pons
• Postcentral gyrus
• Posterior cerebral artery
• Posterior cricoarytenoid
• Precentral gyrus
• Retina
• Salpingopharyngeus
• Scalenus anterior
• Scalenus medius and posterior

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