Neck

• Borders of the Anterior triangle of Neck?

  Sup. = Inf. border of the Mandible

  Lat. = ant. border of the sternocleidomastoid

  Med. = sagtital line down the midline

  Roof = investing fascia

  Floor = visceral fascia

  
• Contents of Anterior triangle of neck?

  Suprahyoid and infrahyoid muscles

  Common carotid --> ext. and int. carotid artery

  Internal Jugular vein

  CN : VII, IX, X, XI, XII

  
• Borders of Carotid triangle?

  Sup. = Post. belly of digastric

  Lat. = Med. border of sternocleidomastoid

  Inf. = Sup. belly of omyhoid

  
• Contents of Carotid triangle?

  Common carotid artery, internal jugular vein, vagus and Hypoglossal nerve

  
• Borders and contents of Submental triangle?

  Inf. = Hyoid bone

  Med. = Midline of neck

  Lat. = Ant. belly of digastric

  Floor = Mylohoid muscle

  Content: submental lymph nodes

  
• Submandibular triangle borders and contents?

  Sup. = Body of mandible

  Ant. = Ant. belly of digastric

  Post. = Post. belly of digastric

  Contents: Submandibular gland, lymph nodes, facial artery and vein

  
• Borders of Muscular triangle?

  Sup. = Hyoid bone

  Med. = Midline of neck

  Supero-Lat. = Sup. belly of omohyoid

  Infero-Lat. = Inf. portion of sternocleidomastoid muscle

  
• Borders of the Posterior Triangle of Neck?

  Ant. = post. border of sternocleidomastoid

  post. = Ant. border of trapezius

  Inf. = Middle 1/3 of clavicle

  roof = Investing layer of fascia

  floor = prevertebral fascia

  
• Nerves in Posterior triangle of Neck?

  Accessory nerve (superficial to triangle)

  brachial plexus ( trunks on floor)

  cervical plexus (floor, phrenic nerve goes into prevertebral fascia and down to diaphragm)
• What is Cervical Plexus Nerve Block?

  Used for anesthesia

  injected along post. border of sternocleidomastoid, superior and middle third = is known as nerve point
• Subdivisions of Posterior triangle?

  Occipital triangle = superior to omohyoid

  Subclavian triangle = inferior and contains distal subclavian artery
• Parts of Hyoid bone?

  Body: central part, ant. convex and post. concave surface

  Greater horn: site of attachment of various neck muscles

  Lesser horn: styloid ligament attaches to apex

  
• Muscle attachment of Hyoid bone?

  Middle pharyngeal constrictor, hyoglossus, genioglossus, Suprahyoid and infrahyoid muscles.

  
• Ligament attachments on Hyoid bone?

  Stylohyoid, Hyoepiglottic and Thyrohoid ligament

  
• Characteristic features of cervical vertebrae?

  Transverse foramen, bifid spinous process, small body (Vertebral foramen)

  
• Branches of the Internal Carotid artery?

  .

  A) ophthalmic artery

  B) meningeal branch

  C) Vidian artery

  D) Inferior hypophyseal artery