1. Nasal and Temporal Region
Tony Serino, Ph.D.
Clinical Anatomy

2. Nasal and Temporal Region: Topic Objectives
Be able to list and identify the parts of nasal and temporal region including skeletal, muscle, nervous and blood supply
Be able to identify on X-ray the paranasal sinuses and their relationships to the nasal cavity
Understand the relationship between olfaction and meningitis risk
Be able to outline the transmission of sound through the ear
Be able to explain sound translation with regard to loudness and pitch physiologically and anatomically
Be able to contrast the differences between static and dynamic equilibrium

3. Superficial Muscles
Nasalis
Zygomaticus
Levator labii superioris

4. Nasal Cartilages Lateral cartilage Sesamoid cartilage Septal cartilage
Alar cartilage
Nostril

5. Nasal Cavity Yellow rods indicate openings to paranasal sinuses
Frontal Sinus
Vestibule
Auditory Tube
Yellow rods indicate openings to paranasal sinuses

6. Paranasal Sinuses
Ethmoid
Frontal
Sphenoid
Maxillary

7. Conchae & Nasal Septum Superior concha Middle concha Inferior concha
Perpendicular plate
Septal cart.
Nasal Septum
Vomer
Nasal Crest

8. Arterial Supply to Nose
Ant. ethmoid a., branch of ophthalmic a.
Sphenopalatine a., branch of maxillary
Kiesselbach area

9. Nasal Innervation
Except for Olfactory area, served by CN V, V1 above dotted line V2 below

10. Olfaction Sense

11. Olfaction Signal Transduction

12. Temporal Region Facial n. Parotid Parotid duct G. Auricular n.
Ext. Jugular
Facial a.

13. Parotid Region Ext. Acoustic Meatus Styloid Process IJV Accessory n.
Vagus n.
Glossopharyngeal n
Int. Carotid
Ext. Carotid
Hypoglossal n.
SCM

14. TMJ Mandibular fossa TMJ articular disc Mandibular condyle (head)
Lateral Pterygoid m.

15. Infratemporal Fossa

16. Infratemporal Fossa

17. Sound

18. Frequency vs. Loudness Frequency measured in hertz (Hz)
Loudness measured in decibels (dB)

19. Anatomy of the Ear
Helix
Lobe
Tragus

21. Middle and Inner Ear Umbo Malleolar Prominence Core of Light Arm IV I
III II

22. Other Important Structures in Tympanic Cavity

23. Ossicles Amplify Sound

24. Loud Sound Protection

25. Cochlea and Cochlear Duct

26. Frequency Perception
Different frequency (pitch) of sound stimulates different areas of cochlear duct
The overall area stimulated relates to the sound intensity

27. Vestibular Apparatus

28. Macula of Utricle and Saccule
Otoconia (otoliths)

29. Ampulla Anatomy