Which division of the nervous system consists of the brain and spinal cord and optic nerves?

Which of these disorders occurs when there is a loss of blood flow and in turn oxygen to the brain?

Stroke. Stroke is an abrupt interruption of constant blood flow to the brain that causes loss of neurological function. The interruption of blood flow can be caused by a blockage, leading to the more common ischemic stroke, or by bleeding in the brain, leading to the more deadly hemorrhagic stroke.

Can the brain heal after lack of oxygen?

A full recovery from severe anoxic or hypoxic brain injury is rare, but many patients with mild anoxic or hypoxic brain injuries are capable of making a full or partial recovery. Furthermore, symptoms and effects of the injury are dependent on the area(s) of the brain that was affected by the lack of oxygen.

What are the symptoms of lack of oxygen to the brain?

Symptoms of hypoxia often include:

  • shortness of breath while resting.
  • severe shortness of breath after physical activity.
  • decreased tolerance to physical activity.
  • waking up out of breath.
  • feelings of choking.
  • wheezing.
  • frequent cough.
  • bluish discoloration of the skin.
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What are the two main division of nervous system?

The nervous system has two main parts: The central nervous system is made up of the brain and spinal cord. The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.

What is nervous system and its function?

Your nervous system is your body’s command center. Originating from your brain, it controls your movements, thoughts and automatic responses to the world around you. It also controls other body systems and processes, such as digestion, breathing and sexual development (puberty).

What are the two major division of the nervous system?

The nervous system as a whole is divided into two subdivisions: the central nervous system (CNS) and the peripheral nervous system (PNS).

What is the nervous system easy definition?

The nervous system controls everything you do, including breathing, walking, thinking, and feeling. This system is made up of your brain, spinal cord, and all the nerves of your body. … The nerves carry the messages to and from the body, so the brain can interpret them and take action.

What is the main purpose of the nervous system?

The nervous system helps all the parts of the body to communicate with each other. It also reacts to changes both outside and inside the body. The nervous system uses both electrical and chemical means to send and receive messages.