Nervous System

By: Anthony Martinez

The Function of The Nervous System

The nervous system transmits signals to parts of the body so they can preform specific functions.

Central Nervous System and Peripheral Nervous System

Central Nervous System: The central nervous system contains two parts, the brain and the spinal cord. The brain contains over 100 billion nerve cells. The Spinal cord is housed in the backbone.

The Peripheral: The peripheral nervous system is divided into two parts, the somatic nervous system and the autonomic nervous system.

Diagram of A Motor Neuron

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Diagram of A Reflex Arc

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The Functions of The Major Regions of The Cerebral Hemispheres, Diencephalon, Brain Stem and The Cerebellum

Cerebral Hemispheres: The brain has two sides, The left side is related to langue and logic while the right brain is related to emotion and feelings.

Diencephalon: The Diencephalon’s function is regulating wakefulness and controlling the autonomic nervous system.

Brain Stem: The Brain Stem’s job is to regulate, heart rate, breathing, sleeping and eating.

Cerebellum: The Cerebellum’s job is to receive signals from the spinal cord, and sensory systems. The Cerebellum also coordinates voluptuary movement, balance and speech.

Two Disorders of The Nervous System

Alzheimer’s Disease

Description: Alzheimer’s Disease is a progressive disease that destroys a person memory and brain function.

Symptoms: The most obvious symptom is memory loss, Alzheimer’s can also effect the persons mood causing them to be more depressed

Prevalence: More than 5 million people suffer from Alzheimer’s.

Treatment: There is no cure for Alzheimer’s but drugs can be used to help behavior symptoms.

Brain Tumors

Description: Brain Tumors is a cancerous and noncancerous growth of abnormal cells in the brain.

Symptoms: The symptoms of Brain Tumors are headaches, difficulty speaking, dizziness, fatigue, seizures, vomiting and sleepiness.

Prevalence: About 70,000 people are diagnosed with Brain Tumors each year.

Treatment: The treatment for Brain Tumors is injection, Tomotherapy, and surgery.