R.P. Yezierski Archives - Clinical Tree

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The Somatosensory System II: Nociception, Thermal Sense, and Touch

One crucial role of the somatosensory system is to supply the brain with information related to insults that cause tissue damage. These signals ascend the neuraxis in a fiber bundle called the anterolateral system (ALS). Anyone who has used a…

The Somatosensory System I: Tactile Discrimination and Position Sense

When you reach into your pocket to determine the types of coins present, you are gathering information through the activation of specialized receptors of the somatosensory system. Specifically, the size of a coin is determined by noting the joint angles…

The Spinal Cord

Although small in diameter, the spinal cord is the most important conduit between the body and the brain. Recall that many cranial nerves contain sensory fibers that receive information from, and motor fibers that project to, diverse body areas; these…