NEUROSCI 101 Lecture Notes - Lecture 7: Accessory Nerve, Vagus Nerve, Peripheral Nervous System
17 May 2016
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Document Summary
Be able to identify parts of the brain (3 divisions, 5 subdivisions - encephalons, rostral/anterior, caudal/posterior, superior/dorsal, inferior/ventral) relative to other parts. What structure is caudal to the medulla? spinal cord. What brain region contains the thalamus? diencephalon. What is the main function of the cerebellum? balance and coordination of movement. Cranial nerves - attached to the brain. Some are both efferent and afferent (2-way highway) Facial - motor b/c controls tear ducts, salivary glands but also receives sensory info from face. Trigeminal - jaw muscles and sensory info coming from mouth and cheeks. Vagus - provides outgoing motor information to your entire gut, provides sensory information from your gut as well. What we have to know about the cranial nerves: Vagus nerves - innervates head and neck and gut. Some motor, some sensory, some both sensory and motor. Don"t run through the spinal cord, input/output directly in brain. Spinal nerves - attached to spinal cord.
