Lateral occipitotemporal gyrus

Gyrus occipitotemporalis lateralis

Definition

Lateral occipitotemporal gyrus is a cerebral gyrus which is situated on the lower surface of cerebral hemisphere. It extends from the occipital pole to the temporal pole. On the inner side, there is a groove called the occipitotemporal sulcus that separates the lateral occipitotemporal gyrus from the medial occipitotemporal gyrus. On the outer side, the lateral occipitotemporal gyrus continues on the outer surface of the cerebral hemisphere as the inferior temporal gyrus.

It's important not to get confused with the different terms used in the literature. For example, the occipitotemporal gyrus is sometimes referred to as the fusiform gyrus. Similarly, the occipitotemporal sulcus is sometimes called the mid-fusiform sulcus, which divides the fusiform gyrus into medial and lateral parts. Consequently, the medial and lateral fusiform gyrus parts are alternative names for the medial and lateral occipitotemporal gyri.

References

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Text written by Muhammad A. Javaid, MD, PhD © 2023 IMAIOS.

  • Snell, R.S. (2010). ‘Chapter 7: The cerebrum’, in Clinical Neuroanatomy. (7th ed.) Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, pp.257-263.

  • Weiner, K.S. and Zilles, K. (2016). The anatomical and functional specialization of the fusiform gyrus. Neuropsychologia. 83:48-62.

  • Patel, A., Biso, G.M.N.R. and Fowler, J.B. Neuroanatomy, Temporal Lobe. [Updated 2023 Jul 24]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK519512/

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