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Nervous System
1. What are the roles of the nervous system in the body?
2. In very general terms, how is the nervous system organized?
3. What is the "functional unit" of the nervous system?
4. What are neurotransmitters?
What role do they play in nervous system function?



Answer :

Final answer:

The nervous system has roles in sensory input, integration, and motor output. Neurons are the functional units, and neurotransmitters help in signal transmission.


Explanation:

Roles of the Nervous System:

  • Sensory Input: receiving information from sensory receptors
  • Integration: processing and interpreting the sensory input
  • Motor Output: responding to the processed information by triggering an appropriate action

Functional Unit of Nervous System:

The neuron is the functional unit of the nervous system, transmitting electrical signals.

Neurotransmitters:

Neurotransmitters are chemical messengers released by neurons to communicate with other neurons. They play a key role in transmitting signals and regulating various functions in the nervous system.


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