Anatomy study note · Head and neck

Vitreous body

A transparent gel filling the eyeball behind the lens.

Key points

• Gel behind the lens.
• Hyaloid canal (fetal hyaloid artery).
• Keeps the retina in place.
• Vitreous: ectoderm + mesoderm; hyaloid canal remains.
• Vitreous: water + collagen + hyaluronic acid.

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 p. 1600
• Inderbir Singh’s Human Embryology, ch. 19, PDF pp. 355, 357
• BRS Cell Biology & Histology, 7th ed., ch. 21, PDF pp. 383–384

More from the head and neck

• Zygomatic bone
• Abducens nerve
• Accessory nerve
• Anterior cerebral artery
• Aqueous humour
• Arteries of the face
• Arytenoid cartilage
• Arytenoid muscles
• Cerebellum
• Cerebrum
• Cervical plexus
• Ciliary body

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