In the last few weeks, the Neuro anatomy class has been working on the cranial nerves, there locations and their important functions. The class found this to be very interesting since we were able to get a better understanding of these important nerves and learn more of what we were already familiar with. We first studied the classifications of the nerves, such as the functional components of the peripheral nerves as a general idea and the particularly the cranial nerves. We saw that the General somatic efferent fibers, where fibers that lied within the brainstem or the spinal cord and that innervated the skeletal muscle. We saw that these neurons innervated skeletal muscle that was derived from the smite. The nerves that were associated with the GSE and the specific somite were the oculomotor nerve, trochlear nerve, abdomens nerve as well as the hypoglossal nerves. We took a look at the Special visceral efferent these were nerves that were derived from the brainstem, which innervated the skeletal muscle. The cranial nerves associated with SVE were cranial nerves trigeminal, facial, glossopharyngeal, valgus and spinal accessory nerves. General visceral efferent is an efferent that lies within the CNS whose fibers innervate smooth muscles or glands and the cranial nerves associated were oculomotor, facial, glossopharyngeal and the valgus once more. General somatic afferents are fibers is one whose cell body lies outside the CNS and these nerves innervate skin, skeletal muscle, tendons, or even joints. The cranial nerves associated would be trigeminal, vogues, glossopharyngeal and facial. Special sensory afferent’s are fibers that convey information to the brain from highly specialized kinds of somatic receptors and the cranial nerves associated would be the optic nerve and the auditory-vestibular nerves. The special visceral afferents have specialized senses and specialized receptors but they mostly use chemoreceptors. We also looked at the different disorders that were associated with damage done to the nerves such as trigeminal neuralgia, Bell’s palsy and bell’s phenomenon. We learned what to look for when looking at patients that may suffer from cranial nerve issues as opposed to have some type of stroke.

 

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