ANAT 312 Lecture Notes - Lecture 7: Substantia Gelatinosa Of Rolando, Dorsal Root Ganglion, Alpha Motor Neuron
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Dr. les mackenzie (reading material nolte textbook: chapter 4: pages 91-92; chapter 10: pages 227-263) beginning continuous with the brainstem. External topography (directed independent learning): walk yourself through this. end about l1 but spinal roots continue to exit through same intervertebral foramina as in development (hence the cauda equine). *the first 7 spinal roots leave the spinal canal above the corresponding vertebrae but after that they exit below the corresponding vertebrae. support/meninges like in the cerebrum, pia matter tightly envelopes the spinl cord. It sends of 21 tooth like processes to the arachnoid and dura matter which anchor the spinal cord (aka. The spinal arachnoid matter is continuous with cerebral arachnoid matter and loosely envelopes the spinal cord. Arachnoid trabeculae are collagenous filaments which extends from the arachnoid to the pia matter. The dura matter of the spinal cord extends from the foramen magnum to the sacrum and coccyx.