(a) how brain and spinal cord are protected (b) what are the different parts of human nervous system
Answers
How brain and spinal cord are protected ?
Brain is protected by cranium ( the skull ) and the Cerebro-Spinal Fluid. The Spinal cord is protected by the Vertebral Column.
The meninges which is a three layer muscle protects both, Brain and Spinal cord.
What are the different parts of human nervous system ?
The three main components of the central nervous system are the
• brain
• spinal cord
• neurons
• The brain is the control center of the body. The brain is typically considered to have three main parts: the forebrain, the hindbrain and the brain stem.
• The brain stem extends down to the spinal cord and is responsible for auditory and visual responses as well as motor function.
• Neurons are the basic units that make up the nervous system. All cells of the nervous system are made of neurons. Neurons are able to transmit electrical impulses throughout the body as signals that cause a response. There are three types of neurons known as motor, sensory and interneurons.
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