The Nervous System in Biology
16 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

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

  • Central nervous system (CNS) (correct)
  • Autonomic nervous system
  • Peripheral nervous system (PNS)
  • Enteric nervous system
  • What are the nerves that transmit signals from the body to the central nervous system called?

  • Motor nerves or efferent nerves
  • Sensory nerves or afferent nerves (correct)
  • Mixed nerves
  • Sympathetic nerves
  • When did nervous tissue first arise in wormlike organisms?

  • About 1 billion years ago
  • About 550 to 600 million years ago (correct)
  • About 100 million years ago
  • About 200 million years ago
  • Which subsystem of the peripheral nervous system mediates voluntary movement?

    <p>Somatic nervous system</p> Signup and view all the answers

    Which type of nerves serve both functions of transmitting signals from the body to the CNS and from the CNS to the body?

    <p>Spinal nerves</p> Signup and view all the answers

    What is the further subdivision of the autonomic nervous system that is responsible for rest and digest functions?

    <p>Parasympathetic nervous system</p> Signup and view all the answers

    What is the main function of the sympathetic nervous system?

    <p>To mobilize energy in emergencies</p> Signup and view all the answers

    Which type of cells provide structural and metabolic support in the nervous system?

    <p>Glia</p> Signup and view all the answers

    What is the role of the enteric nervous system?

    <p>To control the gastrointestinal system</p> Signup and view all the answers

    Which type of organisms have no nervous system at all?

    <p>Sponges, placozoans, and mesozoans</p> Signup and view all the answers

    What is the primary function of the parasympathetic nervous system?

    <p>To activate relaxation in organisms</p> Signup and view all the answers

    What is the purpose of cranial nerves?

    <p>To exit from the cranium</p> Signup and view all the answers

    What is the function of axons in neurons?

    <p>To send electrochemical impulses to other cells</p> Signup and view all the answers

    What do glial cells provide in the nervous system?

    <p>Structural and metabolic support</p> Signup and view all the answers

    Which animals have a nervous system consisting of a diffuse nerve net?

    <p>Anemones, hydras, corals, and jellyfish</p> Signup and view all the answers

    What is the role of the central nervous system?

    <p>To send signals from one part of the body to others</p> Signup and view all the answers

    More Like This

    Nervous System Biology Quiz
    5 questions
    Blood Components and Functions Quiz
    10 questions
    Nervous System and Its Functions
    10 questions

    Nervous System and Its Functions

    LowRiskMahoganyObsidian avatar
    LowRiskMahoganyObsidian
    Use Quizgecko on...
    Browser
    Browser