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- What does the vagus nerve do and what system is it part of?What are the main differences between the sympathetic and parasympathetic branches of the autonomic nervous system?What is the nerve supply of the vallate papillae in the oral part (anterior 2/3) of the tongue Lingual (CN V3) nerve Chorda tympani of facial (CN VII) nerve Glossopharyngeal (CN IX) nerve Vagus (CN X) nerve
- Which structures form a spinal nerve? Why are all spinal nerves mixed?From what embryonic structures do most components ofthe cranial and spinal nerves form?Two patients are admitted to the hospital. According to their charts,both have herniated disks that are placing pressure on the roots of thesciatic nerve. One patient has pain in the buttocks and the posterioraspect of the thigh. The other patient experiences pain in the posteriorand lateral aspects of the leg and the lateral part of the ankle and foot.Explain how the same condition, a herniated disk, can produce suchdifferent symptoms.