What Are The Primary Components Of Our Nervous System

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The primary responsibility of our nervous system is to organize and control the activities of our body. This central control system manages all of the systems of our body, allowing them to work together. Our nervous system coordinates muscles to perform actions sometimes with and sometimes without us thinking about it (i.e. blinking, breathing, etc.). The central nervous system uses its senses to gather information from its surroundings and interpret it. This information is passed on to the muscles and organs of the body, allowing them to react accordingly.

The neuron is the fundamental unit of the nervous system. The nervous system is made up completely of neurons. These neurons act like electrical wires and allow the nervous system to transmit messages throughout the body extremely quickly through nerve impulses. The neuron has three main components: the cell body, the dendrites and the axon. The cell body contains the nucleus but not the dendrites or axons. The dendrite is an extension of the neuron transmitting impulses to the cell body while the …show more content…

Sensory neurons, as its name suggests, are nerves that take in information from its surroundings such as temperature, pain, pressure and so on. These sensory neurons are afferent as in they carry information from sensory organs to the nervous system. Motor neurons are neurons that either directly or indirectly control the relaxation and contraction of muscles. These are efferent neurons as they carry messages from the nervous system to other systems. These are the type of neurons that will react to pain before relaying it to your brain. A classic example of this is when you remove your hand from a hot surface before even realizing that you were experiencing pain. A relay or inter-neuron connects the sensory and motor neurons as it “relays” the input from the sensory to create an output from the

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