Session 9/ Lecture: Nasal cavity and paranasal sinuses

Nasal cavity and paranasal sinuses
Curricular Objectives
By the end of this session students are expected to:
Theory
1. Recall the main functions of nose and acknowledge its importance in clinical practice
2. Review the prominent features and dermatomes of the external nose
3. Outline the extent, divisions, and boundaries of the nasal cavity
4. Describe the boundaries of posterior nasal aperture
5. List and describe the main features of the lateral wall of the nasal cavity
6. Summarize the function of the different epithelia lining the nasal cavity
7. Discuss the blood supply of the nasal cavity
8. Define Kiesselbach’s plexus and list the arteries forming it
9. Acknowledge the importance of the submucosal venous plexus
10. Underline the types of innervations of the nasal cavity
11. Review the course of the nerve supplying the olfactory mucosa
12. List the spaces communicating with the nasal cavity and their opening sites
13. Describe function, drainage, and nerve supply of paranasal sinuses.
14. Relate the sensory nerve supply of paranasal sinuses to possible sites of pain
15. Uncover the relation between frontal and maxillary sinuses regarding their drainage
16. Appraise the fact that drainage orifice of the maxillary sinus lie near its roof
Practical
1. Review the parts of the external nose
2. Label the dermatomes of the external nose
3. Identify and Feel the cartilaginous and bony parts of the nose
4. Locate the nasal cavity and define its extents and main divisions
5. Mark the boundaries of the nasal cavity
6. Identify prominent features of lateral wall of nasal cavity
7. Name and locate the different types of epithelial tissue lining the nasal cavity
8. Recognize Little’s area and acknowledge its clinical importance
9. Trace the sphenopalatine artery and recall its origin and importance
10. Name & Locate the paranasal sinuses & their openings into lateral wall of nasal cavity
11. Mark the site of frontal and maxillary sinuses on the face (surface anatomy)
12. Label the paranasal air sinuses in skull X-ray
13. Palpate the frontal and maxillary air sinuses
14. Distinguish the nerves supplying the frontal and maxillary air sinuses
15. Follow the olfactory nerves to the bulb

Selected references and suggested resources
? Clinical Anatomy by Regions, Richard S. Snell, 9th edition
? Grant s Atlas of Anatomy, 13th Edition
? McMinn s Clinical Atlas of Human Anatomy, 7th Edition
? Anatomy for Babylon medical students (facebook page)
? Human Anatomy Education (facebook page)
? Human anatomy education (you tube channel)

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