Calcarine sulcus
Sulcus calcarinus
Definition
The calcarine sulcus is an important groove located in the occipital cortex. It separates the cuneus (or cuneate gyrus) above it from the gyrus below it, known as the lingula (or lingual gyrus). You can see it on the inner surface of the occipital cortex. On both sides of the calcarine sulcus, there is a primary visual area called Broadman's area 17. It stretches across the cuneus and the lingula. The cuneus forms the upper lip of the calcarine sulcus, while the lingula forms the lower lip.
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Text written by Muhammad A. Javaid, MD, PhD © 2023 IMAIOS.
Snell, R.S. (2010). ‘Chapter 11: The cranial nerve nuclei and their central connections and distribution’, in Clinical Neuroanatomy. (7th ed.) Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, pp.331-370.
Gupta, M., Ireland, A.C. and Bordoni, B. Neuroanatomy, Visual Pathway. [Updated 2022 Dec 19]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK553189/
![e-Anatomy - Cranial nerves - Illustrations - Optic nerve [II] - Calcarine sulcus](https://www.imaios.com/i/s/imaios-images/web/images/eanatomy/modules/nerfs-craniens-anatomie/images/v2/114a842a167b0d9a471c54b46a68766d2bf79247cafe1b8dde1f71527f0edb3a?w=200&mark-x=0&mark-y=0&mark64=aHR0cHM6Ly93d3cuaW1haW9zLmNvbS9pL3MvaW1haW9zLWltYWdlcy90cmEucG5nP3c9MjAwJmg9MjA0JmZpdD1zY2FsZSZtYXJrLXg9NTYuNjgmbWFyay15PTEzMy4xMSZtYXJrNjQ9YUhSMGNITTZMeTkzZDNjdWFXMWhhVzl6TG1OdmJTOXBMM012YVcxaGFXOXpMV2x0WVdkbGN5OXdhVzR1Y0c1bg%3D%3D "e-Anatomy - Cranial nerves - Illustrations - Optic nerve [II] - Calcarine sulcus")
