PSYCH261 Lecture 7: lecture 7
7 Jul 2016
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Effect of the drug you take depends on how it was administered: ex. Dorsal is towards the back of the neuraxis (up) whereas ventral is towards the stomach: rostral is towards the front and caudal is towards the back (tail). If we took the spinal cord and transected, we could see the spinal column. After it emerges from the spinal cord, the dorsal root and the ventral root fuse into a bundle. The nerve is now carrying both sensory and motor information: the ventral root carries motor information. These have cell bodies inside the grey matter of the spinal cord, which sends axons out through the nerve to control parts of the body. Signals are sent through axons that continue, which then go into the grey matter and are synapsed with intrinsic neurons, which are then synapsed with motor neurons that interact with the muscles.
