1. Senses General - located throughout body Special – localized to specific organs

2. Sensory / Afferent Receptors Chemoreceptors – detect chemicals dissolved in solution Mechanoreceptors – respond to change in pressure of movement of fluids/tissue Nocioceptors – respond to tissue damage Thermoreceptors – respond to changes in temperature Photoreceptors – respond to light energy

3. General Senses somatic senses Associated with skin, muscles, joints and visceral organs Touch -- Pressure [ mechanoreceptors] Proprioception [ mechanoreceptors] Temperature [ mechanoreceptors] Pain [ mechanoreceptors]

4. Special Senses Taste = Gustatory [ chemoreceptor] CN VII [facial] & IX [ glossopharyngeal] Smell = Olfaction [ chemoreceptor] CN I [olfactory] Hearing/ Equilibrium [ mechanoreceptor] CN VIII [ acoustic / vestibulocochlear] Sight [ photoreceptor] CN II [optic]

5. Sense of Smell

6. Sense of Taste

7. Sense of Hearing

14. Cranial Nerves CN I – Olfactory – sensory CN II – Optic - sensory CN III – Oculomotor - motor CN IV –Trochlear– motor CN VI – Abducens - motor

15. CN III – Oculomotor CN IV - Trochlear

16. CN VI - Abducens

17. CN IV - Trochlear

18. Cranial Nerves CN V – Trigeminal – sensory & motor

21. Cranial Nerves CN VII - Facial – sensory & motor

24. Cranial Nerves CN VIII – Vestibulocochlear - sensory CN IX – Glossopharyngeal – sensory & motor

26. Cranial Nerves CN X – Vagus – sensory & motor

28. Cranial Nerves CN XI – Accessory - motor

30. Cranial Nerves CN XII – Hypoglossal - motor