1. Somatic Senses General Sensory System

2. Sensation Define Stimulus Type Sensory Organ Sensory Receptors Exteroceptors Interoceptors Proprioceptors Receptor Potential Transduction Pathway Response Adaptation

3. Somatosensory Receptors Nocireceptors Thermoreceptors Mechanoreceptors Tactile Baroreceptors Proprioceptors Chemoreceptors

4. Somatosensory Exteroceptors

5. Somatic Sensory Modalities Discriminative Touch Pressure, Vibration, Texture Rapidly Adapting Meissners Corpuscles Pacinian Corpuscles Slowly Adapting Merkel Disks Pain and Temperature Free nerve endings Fast Pain : A Fibers Slow Pain: C Fibers Ruffini corpuscle: heat Krause corpuscle: cold Proprioception Muscle Spindle Golgi Tendon Organ

6. Pseudounipolar Neuron

7. Ascending Sensory Tracts

8. Crossing Over

9. General Somatosensory Pathway

10. Ascending Sensory Spinal Cord Tract Information Touch and Pressure Discriminative Dorsal Columns: Fasciculus Group Crude Anterior Spinal Thalamic Pain and Temperature Lateral Spinal Thalamic Proprioception Length : Posterior Spinocerebellar Force: Anterior Spinocerebellar

13. Sensory Cortex

14. Sensory Homunculus

15. Association Areas

16. Touch and Pressure

17. Meissners Corpuscles

18. Pacinian Corpuscles

19. Merkel Disks

20. Posterior [Dorsal] Columns

21. Sensory Receptors: Pain

23. Sensory Receptors: Temperature

25. Proprioception

26. Histology of Proprioceptors Muscle Spindle Fibers Golgi Tendon Organ

27. Experiments Discrimination tests Location Density Threshold Adaptation

28. Testing Fields for Pressure

29. Depth and Threshold

30. Receptor Potentials

31. Receptor Testing Variations

32. Temperature

33. Somatosensory Responds to: Contact with foreign objects Warning Feedback Development Changes in temperature Warning Heat regulation Avoid Damage

34. Dermatomes Skin region monitored Sensory receptors Spinal Nerve pair maps the body CN V supplies face

35. Cranial Nerves with Somatosensory CN V Ophthalmic Br. Maxillary Br. Mandibular Br. CN X ANS parasympathetic for pain

36. Reflex Response

37. Pain and Temperature Reflex

38. Reflex Testing

39. Motor Response from Higher Centers

40. Descending Motor Tracts Corticospinal Lateral Anterior Corticobulbar Vestibulospinal Tectospinal Recticulospinal Rubrospinal