Lesser Triangle

It is a triangle contained within the Submandibular triangle. Its boundaries are the Hypoglossal Nerve, and the Anterior and Posterior belly of the Digastric muscle. This triangle was named after a German surgeon named Ladislaus Leon Lesser, who lived from 1846 to 1925[1]

References

Tubbs, R. S.; Rasmussen, M.; Loukas, M.; Shoja, M. M.; Cohen-Gadol, A. A. (2010). "Three nearly forgotten anatomical triangles of the neck: Triangles of Beclard, Lesser and Pirogoff and their potential applications in surgical dissection of the neck". Surgical and Radiologic Anatomy. 33 (1): 53–57. doi:10.1007/s00276-010-0697-2. PMID 20623121.

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[1] Tubbs, R. S.; Rasmussen, M.; Loukas, M.; Shoja, M. M.; Cohen-Gadol, A. A. (2010). "Three nearly forgotten anatomical triangles of the neck: Triangles of Beclard, Lesser and Pirogoff and their potential applications in surgical dissection of the neck". Surgical and Radiologic Anatomy. 33 (1): 53–57. doi:10.1007/s00276-010-0697-2. PMID 20623121.