SUBMENTAL TRIANGLE Meaning and
Definition
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The submental triangle is a anatomical region located in the lower part of the front of the neck, directly underneath the chin. It is bounded by three structures: the anterior belly of the digastric muscle, the midline of the neck known as the symphysis menti, and the hyoid bone.
The anterior belly of the digastric muscle is a flat, paired muscle that originates from the lower inner margin of the body of the mandible (jawbone). The midline of the neck or symphysis menti refers to the center line of the chin where the left and right sides of the mandible join together. Lastly, the hyoid bone is a U-shaped bone located in the front of the neck, just above the larynx.
The submental triangle contains important structures like lymph nodes, vessels, and nerves. These lymph nodes drain the lymph fluid from the lower lip, floor of the mouth, chin, and anterior part of the tongue. Blood vessels found in this area, such as the submental artery and veins, supply blood to various structures, including the skin and muscles of the chin. Nerves in this region include branches of the mandibular and cervical plexus, which provide sensory and motor innervation to the lower face and neck.
In summary, the submental triangle is an anatomical space beneath the chin, enclosed by the anterior belly of the digastric muscle, the symphysis menti, and the hyoid bone. It contains lymph nodes, blood vessels, and nerves crucial for the drainage, blood supply, and innervation of the lower face and neck.
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A t. bounded on either side by the anterior belly of a digastric muscle, and below by the hyoid bone; the myohyoid muscle forms its floor.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for SUBMENTAL TRIANGLE
- aubmental triangle
- zubmental triangle
- xubmental triangle
- dubmental triangle
- eubmental triangle
- wubmental triangle
- sybmental triangle
- shbmental triangle
- sjbmental triangle
- sibmental triangle
- s8bmental triangle
- s7bmental triangle
- suvmental triangle
- sunmental triangle
- suhmental triangle
- sugmental triangle
- subnental triangle
- subkental triangle
- subjental triangle
- submwntal triangle
Etymology of SUBMENTAL TRIANGLE
The word "submental" is a combination of two Latin roots: "sub-" meaning below or under, and "mentum" meaning chin. Together, they form "submental", which refers to the area or structures below the chin.
The term "triangle" describes the shape of the area being referred to. In this case, the submental triangle is a triangular area located under the chin, bounded by the base of the mandible (lower jawbone) and two imaginary lines connecting the angle of the mandible to the hyoid bone.
Therefore, the etymology of "submental triangle" originates from Latin roots combined with the descriptive term "triangle" to denote a specific anatomical location.
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