Regional Anatomy - Triangles of the Neck

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1. Borders of the Carotid triangle

  • 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
  • Sueperior- posterio belly of the digastric muscle, Lateral- superior belly of the omohyoid muscle, Inferior- medial border of the sternocleidomastoid muscle
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2. Borders of the Submental Triangle

  • Inferior- hyoid bone, Medial- imaginary sagittal midline of the neck, Lateral- anterior belly of the digastric, Base- mylohyoid muscle
  • Inferior- imaginary sagittal midline of the neck, Medial-anterior belly of the digastric, lateral- mylohyoid muscle, Base- hyoid bone
  • Inferior- mylohyoid muscle, medial- anterior belly of the digastric, lateral- imaginary sagittal midline of the neck, base- hyoid bone

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

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

4. Main contents of the carotid triangle

  • common carotid artery, internal jugular vein and the hypoglossal (XII) & Vagus (X) nerves
  • carotid artery, external jugular vein and optic (II) & Oculomotor (III) nerves
  • vertebral artery, internal jugular vein and hypoglossal (XII) & glossopharyngeal (IX) nerves

5. the muscles within the suprahyoid group

  • Digastic, geniohyoid, stylohyoid & mylohyoid
  • Digastric, Geniohyoid, sternohyoid & mylohoid
  • Digastric, Stylohyoid, mylohyoid & omohyoid
  • Digastric, sternocleidomastoid, sternothyroid & sternohyoid

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