Regional Anatomy - Triangles of the Neck

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1. Main contents of the carotid triangle

  • vertebral artery, internal jugular vein and hypoglossal (XII) & glossopharyngeal (IX) nerves
  • common carotid artery, internal jugular vein and the hypoglossal (XII) & Vagus (X) nerves
  • carotid artery, external jugular vein and optic (II) & Oculomotor (III) nerves
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2. What nerve or nerves are found in this triangle

  • Accessory Nerve (XI)
  • Glossopharyngeal (IX) and Vagus (X) nerve
  • Accessory (XI), Vagus (X) & glossopharyngeal (IX) nerves
  • Vagus neve (X)

3. Borders of the submandibular triangle

  • Superior- body of the mandible, Anterior- anterior belly of the digastric muscle, Posterior- posterior belly of the digastric muscle
  • Superior- anterior belly of the digastric muscle, Anterior- body of mandible, Posterior- posterior belly of the digastric muscle
  • Superior- posterior belly of the digastric muscle, Anterior-body of the mandible, Superior- anterior belly of the digastric muscle

4. 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

5. Borders of the Submental Triangle

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

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