Facts about the Nervous System

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Did you Know? List of Interesting Facts about the Nervous System
Facts are statements which are held to be true and often contrasted with opinions and beliefs. Our unusual and interesting facts about the Nervous System, trivia and information, including some useful statistics will fascinate everyone from kids and children to adults.

Interesting Facts about the Nervous System are as follows:

  • Fact 1 - Definition: The Nervous System is the sensory and control apparatus consisting of a network of nerve cells. The nerve cells are called neurons which coordinate the actions of an animal or human and transmit electrical and chemical transmission signals between different parts of its body

  • Fact 2 - The Nervous System has 2 parts: The "central" nervous system and the "peripheral" nervous system
  • Fact 3 - The "central" nervous system is comprised of the brain, retina and spinal cord
  • Fact 4 - The "peripheral" nervous system is the nerve tissue that transmits sensation and motor information back and forth from the body to the central nervous system
  • Fact 5 - The nervous system is primarily made up of two categories of cells: neurons and glial cells
  • Fact 6 - Neurons: Neurons send signals to other cells as electrochemical waves travelling along thin fibers called axons
    • Axons: Axons cause chemicals, called neurotransmitters, to be released at junctions which are called synapses
  • Fact 7 - Ganglia: Clusters of neurons called ganglia which provide relay points and intermediary connections between the peripheral and central nervous systems
  • Fact 8 - Glial Cells: the nervous system contains specialized cells called glial cells, or glia, which provide structural and metabolic support
  • Fact 9 - There are multiple ways that a cell can send signals to other cells
  • Fact 10 - There are multiple ways that a cell can send signals to other cells
  • Fact 11 - Hormones: Hormones release chemicals called into the internal circulation
  • Fact 12 - The nervous system can malfunction in a wide variety of ways, due to:
    • physical damage due to trauma
    • physical damage due to poison
    • infection
    • genetic defects
    • aging
  • Fact 13 - The smooth functioning of the 5 senses of touch, sight, taste, hearing and smell, is attributed to the nervous system
  • Fact 14 - The human brain consists of approx 100 billion neurons
  • Fact 15 - In humans, the right side of the brain controls the left side of the body, whilst the left side of the brain controls the right side of he body
  • Fact 16 - A man's spinal cord is a bundle of nerve tissue that is about 17.7 inches long, an average woman's spinal chord is 16.9 inches long
  • Fact 17 - The brain weighs approximately 3lbs

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