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Nervous System 5

Nervous System V: In this lecture, Professor Diamond continues her discussion of the nervous system and begins by reviewing the telencephalon before transitioning into a discussion of the six layers of the neocortex. She discusses the hippocampal-dentate complex, the archicortex, and the temporal lobe, which contains the hippocampus and pyramidal cells along with the fimbrea, fornix, and mammilary bodies. To enhance students’ understanding of the neural tube, Professor Diamond explains the twelve pairs of cranial nerves: the olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, cochliar and vestibular, glossopharyngeal, vagus, spinal accessory, and hypoglossal nerves. She relates each of these nerves to their innervations, describing aspects of the eye muscle, including the lateral rectus and how it can cause medial strabismus, the taste buds, the submaxillary, submandibular and parotid salivary glands as well as how parotid salivary glands are affected by mumps, somatic and visceral motor functions, the foramen magnum, and the tongue muscles. She concludes with a description of the 31 spinal nerves and their locations in the cervical, thoracic, lumbar, sacral, and coccygeal parts of the spine before showing how they are protected by the three layers that form the meneges: the dura mater, arachnoid, and pia mater.