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Senses
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Senses

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  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

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

  9. CN III – Oculomotor CN IV - Trochlear

  10. CN VI - Abducens

  11. CN IV - Trochlear

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

  13. CN V – Trigeminal – sensory & motor

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

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

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

  17. Cranial Nerves CN XI – Accessory - motor

  18. Cranial Nerves CN XII – Hypoglossal - motor