Anatomy study note · Head and neck

Insula

A region of cerebral cortex that grows slowly during development and becomes buried as the surrounding cortex grows over it.

Key points

• Hidden cortex covered by the opercula.
• Slow growth → overgrown by frontal, parietal and temporal opercula.
• Develops from cortex like the rest of the telencephalon.
• Cortex = grey matter on the surface, white matter beneath.
• CNS myelin: oligodendrocytes.

The full note in the atlas also covers

Histology · Development

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Written from

• Inderbir Singh’s Human Embryology, ch. 17, PDF p. 341
• BRS Cell Biology & Histology, 7th ed., ch. 9, PDF pp. 163, 169–170

More from the head and neck

• Internal capsule
• Internal carotid artery
• Internal jugular vein
• Iris
• Lacrimal apparatus
• Laryngeal membranes and ligaments
• Larynx
• Lateral cricoarytenoid
• Lateral pterygoid
• Lateral rectus
• Lens
• Levator palpebrae superioris

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