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The extension of the pia mater that anchors the spinal cord to the coccyx is called the 4. The group of spinal nerves that are within the distal end of the vertebral canal, Major Regions of the Spinal Cord Essay Example  extending inferiorly from the spinal cord is called the 5. Which branch of the spinal nerves innervates internal organs and constitute the autonomic system? 6. Label the membranes, spaces and major regions of the spinal cord: epidural space, gray matter of the spinal cord, white matter of the spinal cord, denticulate ligament, dura mater. nia mater. arachnoid mater. subarachnoid space, meninges

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In the following figure label the parts of the spinal cord: anterior gray horn, anterior median fissure, anterior white column, central canal, gray commissure, lateral gray horn, lateral white column, posterior gray horn, posterior median sulcus, posterior root ganglion, posterior white columns, spinal nerve, anterior root, posterior root 8. What type of fibers make up the posterior and anterior roots of the spinal nerve? Posterior root: Anterior root: Why spinal nerves are called mixed nerves? B. Reflexes 1. Label the structures on the following diagram: sensory neuron, effector, interneuron (association neuron), receptor, motor neuron, spinal nerve. Major Regions of the Spinal Cord Essay Example