Triangular part of inferior frontal gyrus - Brain - Cerebral lobes - e-Anatomy
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Triangular part of inferior frontal gyrus

Pars triangularis gyri frontalis inferioris

  • Related terms: Triangular part

Definition

The triangular part of inferior frontal gyrus, referred to as the pars triangularis, is a specific region of the inferior frontal gyrus which lies between the anterior horizontal and ascending rami of the lateral sulcus in the brain.

Both the triangular part of inferior frontal gyrus and the orbital part (pars orbitalis) are regions where the Broca’s motor speech area is located in the dominant cerebral hemisphere, which is typically the left hemisphere.

References

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

  • El-Baba, R.M. and Schury, M.P. Neuroanatomy, Frontal Cortex. [Updated 2023 May 29]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK554483/

  • Alvarez Toledo, N., Munakomi, S. and Prestigiacomo, C.J. Neuroanatomy, Sylvian Fissure. [Updated 2023 Aug 28]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK574552/

  • Bui, T., and M Das, J. Neuroanatomy, Cerebral Hemisphere. [Updated 2023 Jul 24]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK549789/

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