1. Introduction to Head and Neck Anatomy Sanjaya Adikari Department of Anatomy 1

2. Boundaries of the head & neck Spinous process of C 7 Acromian 2

3. Bones 3 Facial skeleton Cervical Vertebrae Skull vault Skull base

4. Spinal cord Foramen magnum Brain and the spinal cord 4

5. 5 CNSPNS Somatic CNSPNS Autonomic Nervous sytem

6. 1 34 5 6 = forebrain (cerebrum) 1 5 4 3 6 2 2 + = midbrain = hindbrain 43 5 = brainstem midbrain pons medulla Main divisions of the brain 6

7. Cranial nerves 7

8. Studying cranial nerves Should know 1.Position of nucleus 2.Course within brain stem 3.Emerging point from brain stem 4.Point of exit from the cranial cavity 5.Extracranial course 6.Distribution 8

9. 9

10. Spinal Nerves 10

11. 11 Afferent (sensory) SomaticVisceral Efferent (motor) VoluntaryInvoluntary/Autonomic Eye Ear Nose Tongue Body Mind Contract OR Secrete

12. Muscles of facial expression Frontalis Orbicularis oculi Orbicularis oris Zygomaticus minor & major Levator labii muscles & levator anguli oris Depressor anguli oris Buccinator 12

13. Muscles of mastication Temporalis Masseter Lateral pterygoid Medial pterygoid 13

14. Parotid region 14

15. Temporal fossa 15

16. Infratemporal Fossa 16

17. Suboccipital region 17

18. Pterygopalatine Fossa 18

19. Triangles of the neck 19

20. 20

21. Compartments of the neck 21

22. Lymph nodes in the head & neck 22