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The Pharynx (Anatomy of the Neck)

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The Pharynx (Anatomy of the Neck)

  1. 1. PHARYNX (Page 117) Dr.Sherif Fahmy
  2. 2. Shape & Extensions Shape: Funnle-shaped. Extensions: - Above: base of skull. - Below: Esophagus at level of C6 vertebra. Length: 5 inches Diameter: 3.5 cm at upper end & 1.5 Dr.Sherif
  3. 3. Parts of Pharynx •1- Naso-pharynx •2- Oro-pharynx •3- Laryngo-pharynx Dr.Sherif Fahmy
  4. 4. Naso- pharynx oro- pharynx Laryng- pharynx Soft palate Epiglottis Larynx Sagittal Section Dr.Sherif Fahmy
  5. 5. Relations of pharynx Dr.Sherif Fahmy
  6. 6. Larynx Nasal cavity Oral cavity Dorsum of tongue Upper 6 cervical vertebrae Anterior & Posterior Relations Dr.Sherif Fahmy
  7. 7. Lobe of thyroid glandCommon carotid art. Styloid apparatus Lateral Relations Dr.Sherif Fahmy
  8. 8. Layers of Wall of pharynx 1- Mucosa. 2- Submucosa. 3- Pharyngo-basilar fascia. 4- Muscle layer. 5- Buccopharyngeal fascia. Dr.Sherif Fahmy
  9. 9. Muscles of Pharynx A- Constrictor muscles B- Longitudinal muscles Dr.Sherif Fahmy
  10. 10. Constrictor Muscles (Page 119) Dr.Sherif Fahmy
  11. 11. Crico- pharyngeus m Thyro- pharyngeus m3- Inferior Constrictor m Cricoid Thyroid Hyoid Stylohyoid lig. 2- Middle constrictor m Pterygoid hamulus Pterygo- mandibular lig. 1- Superior constrictor m Pharyngeal tubercle Pharyngeal raphe Dr.Sherif Fahmy
  12. 12. Gaps Between Constrictor Muscles Dr.Sherif Fahmy
  13. 13. Cricoid Thyroid Hyoid Tensor palati m.Auditory tube Tensor palati m. Stylopharyngeus m. Glossopharyngeal nerve Superior laryngeal art. Internal laryngeal nerve Thyro-hyoid membrane Dr.Sherif Fahmy
  14. 14. Dr.Sherif Fahmy
  15. 15. Longitudinal Muscles of Pharynx • 1- Stylo-pharyngeus muscle • 2- Palato-pharyngeus muscle • 3- Slapingo-phryngeus muscle Dr.Sherif Fahmy
  16. 16. Auditory tube Salpingo- pharyngeus m. Soft palate Palato- pharyngeus m Stylo- pharyngeus m Thyroid cartilage Wall of pharynx Styloid process Dr.Sherif Fahmy
  17. 17. Cavity of Pharynx Dr.Sherif Fahmy
  18. 18. Naso- pharynx oro- pharynx Laryng- pharynx Soft palate Epiglottis Larynx Sagittal Section Dr.Sherif Fahmy
  19. 19. A- Naso-pharynx 1- Boundaries. 2- Communications. 3- Internal features. Dr.Sherif Fahmy
  20. 20. Naso-pharyngeal tonsil Opening of auditory tube Tubal elevation Salpingo- pharyngeal fold Pharyngeal recess Dr.Sherif Fahmy
  21. 21. B- Oro-pharynx 1- Boundaries. 2- Communications. 3- Internal features. Dr.Sherif Fahmy
  22. 22. Palatine tonsil Dr.Sherif Fahmy
  23. 23. Palatine tonsils Palato- glossal fold Palato- pharyngeus fold Dr.Sherif Fahmy
  24. 24. Uvula (median part of soft palate) Palato-glossal fold Palato- pharyngeal fold Palatine tonsil Dr.Sherif Fahmy
  25. 25. Palatine Tonsil (Page 124) Dr.Sherif Fahmy
  26. 26. Palatine tonsil Dr.Sherif Fahmy
  27. 27. Relations of Palatine Tonsil Dr.Sherif Fahmy
  28. 28. Palatine tonsil Dr.Sherif Fahmy
  29. 29. Palato-glossal fold Palato- pharyngeal fold Palatine tonsil Dr.Sherif Fahmy
  30. 30. Intra-tonsillar cleft Tonsillar crypts capsule Superior constrictor m. Paratonsillar vein Facial art. Ascending palatine art. I.C.A. Medial Dr.Sherif Fahmy
  31. 31. Arterial supply of palatine tonsil: 1- Tonsillar branch of facial artery. 2- Ascending pharyngeal artery. 3- Ascending palatine artery. 4- Lesser palatine artery. 5- Dorsal lingual arteries from lingual artery. Nerve supply: 1- Glossopharyngeal nerve. 2- Lesser palatine nerve. Lymph drainage: 1- Jugulo-digastric nodes. Surface anatomy: - Oval area on ramus of mandible, above and infront angle of mandible. Dr.Sherif
  32. 32. C- Laryngo-pharynx 1- Boundaries. 2- Communications. 3- Internal features. Dr.Sherif Fahmy
  33. 33. Posterior view Posterior wall of pharynx (Cut) Piriform recess Inlet of larynx Pathway of food during swallowing Dr.Sherif Fahmy
  34. 34. Waldeyer’s Ring of Lymphoid Tissue • 1- Nasopharyngeal tonsil • 2- Palatine tonsils • 3- Lingual tonsil • 4- Tubal tonsils Dr.Sherif Fahmy
  35. 35. Palatine tonsil Naso- pharyngeal tonsil Tubal tonsil Lingual tonsil Dr.Sherif Fahmy
  36. 36. Arterial Supply of Pharynx • 1- Ascending pharyngeal artery. • 2- Ascending palatine artery. • 3- Pharyngeal branch from maxillary artery. • Pharyngeal plexus: • 1- Pharyngeal branch of glosso-pharyngeal nerve (sensory). • 2- Pharyngeal branch of vagus (Motor). • 3- Pharyngeal branch from superior cervical sympathetic ganglion (sympathetic) Dr.Sherif
  37. 37. Dr.Sherif Fahmy
  38. 38. Dr.Sherif Fahmy

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