QuestionQuestion

Nervous System
1. The limbic system is a system in the brain that involves neurons from several different regions. Explain where the limbic system is located, what structures make up the system, and the main roles of the limbic system, and how it is important in behavior

2. The cerebellum is an often overlooked region of the brain. Explain how it is physically connected to the brain stem, and what role it has in the muscular system.

3. The hypothalamus has many roles within the nervous system. Describe the role it plays in controlling the autonomic nervous system, and explain why some neurologists refer to the ANS as the emotional-visceral system.

4. Distinguish between somatic motor activity and visceral motor activity. Within the spinal cord, where are the neurons that control somatic and visceral motor activity?

5. What constitutes the blood-brain barrier, and what is the significance of it? In addition to the blood-brain barrier, what other components of the body provide protection to the CNS?

6. A patient has a herniated disc that is compressing the C6 spinal nerve and preventing the nerve from sending signals to the biceps brachii muscle. Explain the anatomy of the dorsal and ventral rami, and why is the patient only experiencing weakness in the muscle and not complete paralysis of the muscle?

7. Trace the pathway of CSF from it’s formation within the brain until it reaches the subarachnoid space. If an individual has enlarged lateral ventricles due to a blockage in the flow of CSF, what brain structures in the Immediate area are most likely to be affected, and what major functions would you expect to be interfered with based on the functions of those structures?

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1. The limbic system is part of the brain structures located on either side of the thalamus, just below the cerebral cortex. It represents the border structures around the basal parts of the brain. The limbic system is very complex. The limbic system is in charge of controlling emotional behavior and urges. It has significance in the processes of eating, emotions, conflicts, fear, sexual reproduction, smell, sleep and dreaming, memory. The limbic system consists of the limbic lobe, the orbitofrontal cortex, the mediodorsal nucleus of the thalamus, the anterior nuclei of the thalamus, the septal area, the amygdala, the hippocampus, the hypothalamus, parts of the basal ganglia, the limbic nuclei of the midbrain.
2. Three peduncles (superior, middle and inferior) connect the cerebellum to the brain stem. Pons is connected to the cerebellum via the middle peduncle, the largest one of three peduncles. The midbrain...

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