Regional Anatomy - Triangles of the Neck

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1. Borders of the Carotid triangle

  • Sueperior- posterio belly of the digastric muscle, Lateral- superior belly of the omohyoid muscle, Inferior- medial border of the sternocleidomastoid muscle
  • Superior- posterior believe the digastric muscle, Lateral- medial border of the sternocleidomastoid muscle, inferir- superior belly of the omohyoid muscle
  • Superior- medial border of the sternocleidomastoid muscle, Lateral- posterior belly of the digastric muscle, inferior- superior belly of the omohyoid muscle
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2. Borders of the posterior triangle

  • Anterior- posterior border of the sternocleidomastoid, Posterior- anterior portion of the sternocleidomastoid, inferior- the first third of the clavicle
  • Anterior- Posterior border of the sternocleidomastoid, Posterior- Anterior border of the trapezius muscle, Inferior- middle 3rd of the clavicle
  • Anterior- Anterior border of the sternocleidomastoid, Posterior- posterior border of the sternocleidomastoid, Inferior- middle 3rd of the clavicle

3. Contents of the Muscular triangle

  • Contains: blood vessels, infrahyoid muscles, the pharynx, the thyroid and parathyroid
  • Contains: no vessels, infrahyoid muscles, the pharynx, the thyroid and parathyroid
  • contains: no vessels, Suprahyoid muscles, the larynx, the thyroid and parathyroid

4. Borders of the Anterior triangle

  • Superior- medial border of the sternocleidmastoid, Lateral- imaginary sagittal line down the midline of the body, medial- inferior border of the mandible (jawbone)
  • Superior- Inferior border of the mandible (jawbone), Lateral- medial border of the sternocleidomastoid, medial- imaginary sagittal line down the midlineof body
  • Superior - imaginary sagittal line down midline of body, lateral- medial border of the sternocleidmastoid, medial- inferior border of the mandible

5. Names of the two subdivision of the posterior triangles of the neck

  • Occipital and Subclavian triangles
  • Olfactory and submandibular triangles
  • Occipital and submandibular triangles
  • olfactory and subclavian triangles

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