Regional Anatomy - Triangles of the Neck

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1. Borders of the occipital triangle

  • Anterior- sternocleidomastoid, Posterior- trapezius, inferior- omohyoideus, floor- splines captious, elevator scapulae and scalene medium and posterior
  • Anterior- omohyoidues, Posterior- sternocleidomastoid, inferior- trapezius, floor- splenius capitis, levator scapulae and scalene medius and posterior
  • Anterior- trapezius, Posterior- omohyoideus, inferior- sternocleidmastoid, floor- splenius capitis, levator scapulae and scalene medius and posterior
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2. 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

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. Contents of the subclavian triangle

  • subclavian artery, brachial plexus, external jugular vein, lymph nodes
  • subclavian artery, subclavian vein, brachial plexus, internal jugular vein, lymph nodes
  • subclavian artery, subclavian vein, brachial plexus, external jugular vein, lymph nodes
  • subclavian artery, brachial plexus, internal jugular vein, lymph nodes

5. 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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