1. Somatic Sensory System

2. Receptor Potentials

3. Thermal and Mechanical Channels

4. The Skin Harbors Morphologically Distinct Mechanoreceptors

5. The Major Classes of Somatic Sensory Receptors

6. Afferent Axon Types

7. Slowly Adapting and Rapidly Adapting Mechanoreceptors Respond Differently to Stimulation
Tonic
Phasic

8. Activity Patterns in Fingertip

9. General Organization of the Somatic Sensory System

10. General Organization of the Somatic Sensory System

11. Dermatomes

12. Sensitivity of Tactile Discrimination Varies with Location on the Body Surface

13. Main Mechanosensory Pathways from the Body

14. Main Mechanosensory Pathways from Face

15. The Somatic Sensory Portions of the Thalamus and Cortical Targets

16. Somatotopic Order in the Human Primary Somatic Sensory Cortex