Tongue

Tongue

1. MUSCLES

   • INTRINSIC MUSCLES
     • AFFECT THE SHAPE AND SIZE OF THE TONGUE
       • SUPERIOR LONGITUDINAL
       • INFERIOR LONGITUDINAL
       • TRANSVERSE
       • VERTICAL
       • INNERVATED BY HYPOGLOSSAL NERVE (CN 12)
   • EXTRINSIC MUSCLES
     • GENIOGLOSSUS
       • HYPOGLOSSAL NERVE CN 12
     • HYOGLOSSUS
     • STYLOGLOSSUS
     • PALATOGLOSSUS
       • VAGUS NERVE CN 10

2. INNERVATION

   • ANTERIOR 2/3
     • GENERAL
       • LINGUAL NERVE (BRANCH OF THE MANDIBULAR PART OF TRIGEMINAL NERVE CN5)
     • TASTE
       • FACIAL NERVE CN 7
   • POSTERIOR 1/3
     • BOTH TOUCH AND TASTE
       • GLOSSOPHARYNGEAL NERVE CN 9

3. BLOOD SUPPLY

   • LINGUAL ARTERY
   • LINGUAL VEIN

4. LYMPHATIC DRAINAGE

   • ANTERIOR 2/3
     • SUBMANDIBULAR AND SUBMENTAL NODES
   • POSTERIOR 1/3
     • DEEP CERVICAL NODES