Nervous System and Neurons Quiz
10 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

Where are cell bodies located?

  • Only in the CNS
  • In the ganglia outside the PNS
  • In the CNS or in ganglia (correct)
  • Exclusively in the PNS

    • What do sensory neurons do?

  • Act as receptors themselves or are activated by stimuli received from receptors (correct)
  • Cause muscles or glands to contract
  • Send signals to effectors
  • Interconnect neurons within the CNS

    • Where do interneurons lie?

  • Exclusively in the PNS
  • In both CNS and PNS
  • Within the central nervous system (CNS) (correct)
  • In ganglia outside the CNS

    • What is the function of motor neurons?

    <p>Cause muscles or glands to contract or secrete</p> Signup and view all the answers

    How do neurons communicate?

    <p>Through action potentials or nerve impulses</p> Signup and view all the answers

    What is the small gap between the axon of a presynaptic neuron and a postsynaptic cell called?

    <p>Synaptic cleft</p> Signup and view all the answers

    What occurs when a threshold stimulus is applied to a resting neuron?

    <p>Action potential</p> Signup and view all the answers

    What is the trend towards bilateral symmetry and cephalization observed in animals?

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

    In which animal does the nervous system exhibit a ladder-like structure?

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

    What causes the plasma membrane of a resting neuron to be negatively charged inside than outside the cell?

    <p>Sodium-potassium pump</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser