Kinesiology 4432A/B Study Guide - Midterm Guide: Rostral Ventrolateral Medulla, Nucleus Ambiguus, Excitatory Synapse
13 Apr 2018
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Document Summary
Schematic of brainstem autonomic anatomy have host of different nuclei that are. In your medulla (brain stem) you essential for life, breathing, cardiovascular function that without it you would die from cranial nerves 9 and 10. Afferent information is coming in (glossylpharyngeal and vagus nerve entire the brain stem and they first make contact with nucleus tractus solitarius) There are 2 nuclei there in control for parasympathetic activity: nucleus ambiguous and dorsal motor nucleus (to different degrees, but of these are involved in parasympathetic outflow related to cardiac function. Rostral ventrolateral medulla closer to the nose, ventro: front, lateral: each side of the brain steam: this is the site of all sympathetic outflow. Caudal ventrolateral medulla caudal referring to tail; it is a critical piece in the negative feedback process for sympathetic drive. Excitatory synapse will be using glutamate as the neurotransmitter; inhibitory synapse will be using gaba as the neurotransmitter.
