Nervous System

By: Sydney Archibald and Shelbie Rhodes

What is the function of the Nervous System?

  1. The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body. Together, these organs are responsible for the control of the body and communication among its parts.

Define central nervous system and peripheral nervous system.

Central Nervous System -
  1. the complex of nerve tissues that controls the activities of the body. In vertebrates it comprises the brain and spinal cord.

Peripheral Nervous System -

  1. the nervous system outside the brain and spinal cord.

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Describe the functions of the major regions of the cerebral hemisphere, diencephalon, brain stem and cerebellum.

Cerebral Hemisphere - the functions of the fontal, parietal, temporal, and occipital lobes of the cerebral cortex, differentiate between the lateralized functions of the left and right hemispheres of the brain, locating the processes of language, logical reasoning, and various perceptual tasks.

Diencephalon - the region of the embryonic vertebrate neural tube that gives rise to posterior forebrain structures including the thalamus, hypothalamus, posterior portion of the pituitary gland, and pineal gland.

Brain Stem - The brain stem has many basic functions, including regulation of heart rate, breathing, sleeping, and eating. It includes the medulla oblongata, pons, and midbrain.

Cerebellum - The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements. The cerebellum coordinates voluntary movements such as posture, balance, coordination, and speech, resulting in smooth, balanced muscular activity.

What are 2 major disorders?

Brain Tumor - Headaches, which may be severe and may worsen with activity or in the early morning seizures. Motor seizures, also called convulsions, are sudden involuntary movements of a person’s muscles. People may experience different types of seizures, including mycologic and tonic-clonic. Certain drugs can help prevent or control them. Treatments are years of surgeries.

Epilepsy - Epilepsy is a group of related disorders characterized by a tendency for recurrent seizures. There are different types of epilepsy and seizures. Epilepsy drugs are prescribed to control seizures, and rarely surgery is necessary if medications are ineffective.