Buccopharyngeal Fascia

Buccopharyngeal Fascia

Question 1. Buccopharyngeal fascia
Answer:

• Buccopharyngeal fascia covers the superior constrictor muscle externally
• Buccopharyngeal fascia extends on the superficial aspect of the buccinators muscle

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Question 2. Contents of suprasternal space
Answer:

• Sterna heads of the right and left sternocleidomastoid muscles
• Jugular venous arch communicating two anterior jugular vein
• A lymph node
• The interclavicular nerves
• Suprasternal ossicles

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Question 3. Formation of ansa cervicalis
Answer:

• Ansa cervicalis is formed by
  • Superior root called descendens hypoglossi
    • Derived from first cervical nerve
    • C1 & C2 joins hypoglossal nerve to form it
    • Descends between internal carotid artery and common carotid artery
• Inferior root
  • Derived from second and third cervical nerve
  • Descends and wind around the internal jugular vein and joins the superior root

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Question 4. Name any four nerves related to the posterior border of sternocleidomastoid muscle.
Answer:

Nerves related to posterior border of sternocleidomastoid are:

• Spinal accessory nerve
• Branches of cervical plexus
• Roots and trunks of branchial plexus
• Phrenic nerve.