The Nervous System Quiz

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Questions and Answers

Which part of the nervous system consists of the brain and spinal cord?

  • Peripheral nervous system (PNS)
  • Sensory nerves
  • Motor nerves
  • Central nervous system (CNS) (correct)

What is the function of the peripheral nervous system (PNS)?

  • Connect the CNS to every other part of the body (correct)
  • Transmit signals to and from different parts of the body
  • Detect environmental changes
  • Coordinate actions and sensory information

What are nerves that transmit signals from the brain called?

  • Mixed nerves
  • Motor nerves or efferent nerves (correct)
  • Spinal nerves
  • Sensory nerves or afferent nerves

When did nervous tissue first arise in wormlike organisms?

<p>About 550 to 600 million years ago (C)</p> Signup and view all the answers

What is the main function of the nervous system?

<p>Coordinate actions and sensory information (A)</p> Signup and view all the answers

Flashcards

What comprises the Central Nervous System (CNS)?

The central nervous system consists of the brain and spinal cord.

What is the role of the Peripheral Nervous System (PNS)?

The peripheral nervous system connects the central nervous system (CNS) to the rest of the body.

What are nerves that send signals from the brain called?

Nerves that transmit signals from the brain are called motor nerves or efferent nerves.

What is the nervous system's primary role?

The main function of the nervous system is to coordinate actions and sensory information.

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