1) Neuroscience Online: an electronic textbook for the neurosciences. This is a free educational resource provided by the Department of Neurobiology and Anatomy at The University of Texas Medical School at Houston. It is really superb and we urge you to make use of it. The online version works fine on computers, but since visualization of the figures requires a flash player, they are absent when the material is viewed using an Ipad.
 Section 2, Chapter 4: Somatosensory Pathways
          4.7 Main Sensory Trigeminal Pathway: Face Discriminative Touch and Proprioception (We cover this in Module 4)
          4.8 Neospinothalamic Pathway: Body - Sharp Pricking Pain and Cool/Cold (We cover this in Module 4)
          4.9 Spinal Trigeminal Pathway: Face Pain, Temperature and Crude Touch
     Section 2, Chapter 6: Pain Principles
          6.1 Pain Receptors
          6.2 Factors that Activate Nociceptors
          6.3 Pain Thresholds and Just Noticeable Differences
          6.4 Pain Fibers
          6.5 Double Pain Sensations
          6.6 Nociceptive Neurons in the Spinal Cord (Nocineurons)
          6.7 Classification of Pain
     Section 2, Chapter 7: Pain Tracts and Sources
          7.1 Pain Pathways
          7.2 Sources of Pain
          7.3 Acute Pain
          7.4 Chronic Pain
          7.5 Summary

2) The Nervous System in Action by Michael D. Mann. Click on MANN TEXT to access the internet version of this excellent textbook. The home page provides links to individual chapters and also offers PDF links, making it easy to print copies of the text. You can view the material directly on your computer screen, but print out a copy if possible. The reason to do so is that we will refer to specific pages in the text, and these are not shown in the computer screen version. In Chapter 5 see the following:
    Chapter 5, Somesthesia - Peripheral Mechanisms
          Page 5-8 - temperature sensation
          Page 5-11 - pain sensation
          Page 5-15 - the neurophysiology of pain
     Chapter 6, Somesthesia - Central Mechanisms
          Page 6-13 - central mechanisms of pain sensation
          Page 6-14 - the gate theory of pain
          Page 6-17 - endogenous pain suppression system
          Page 6-19 - referred pain
          Page 6-21 - pain treatment
          Page 6-24 - acupuncture

3) The Digital Anatomist. This is an excellent program developed by the Dept. Biological Structure, University of Washington, Seattle. It contains a huge library of views of the brain. We will refer to specific figures in many of our modules, including this one.