Functional Classification of Neurons
15 Questions
100 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

What do sensory neurons do?

  • Carry messages away from CNS
  • Carry impulses to the center (correct)
  • Detect changes inside the body (correct)
  • Process and store information
  • What lies in the CNS and processes information?

    Interneurons

    What do motor neurons carry?

    Messages away from CNS

    What are the functional classifications of neurons?

    <p>Sensory, Interneurons, Motor</p> Signup and view all the answers

    Which of the following are divisions of the nervous system?

    <p>All of the above</p> Signup and view all the answers

    What does the Central Nervous System consist of?

    <p>Spinal cord and brain</p> Signup and view all the answers

    Where do cranial nerves arise from?

    <p>The brain</p> Signup and view all the answers

    What does the Somatic Nervous System connect to?

    <p>Skin and skeletal muscles</p> Signup and view all the answers

    What are the functions of the Autonomic Nervous System?

    <p>Connects CNS to viscera; acts on effectors other than skeleton; regulates unconscious activities</p> Signup and view all the answers

    What are the parts of the spinal cord?

    <p>All of the above</p> Signup and view all the answers

    What does the Central Canal contain?

    <p>Cerebrospinal fluid</p> Signup and view all the answers

    What do Dorsal Roots contain?

    <p>Cell bodies of sensory neurons</p> Signup and view all the answers

    What is Gray Matter primarily composed of?

    <p>Interneurons and some motor neurons</p> Signup and view all the answers

    What gives White Matter its appearance?

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

    What does the Ventral Root contain?

    <p>Axons of motor neurons</p> Signup and view all the answers

    Study Notes

    Functional Classification of Neurons

    • Sensory neurons transmit impulses from sensory organs to the central nervous system (CNS), detecting internal and external changes.
    • Interneurons are located within the CNS, processing and storing information and making decisions based on incoming sensory impulses.
    • Motor neurons convey messages away from the CNS to effectors, facilitating actions in response to stimuli.

    Divisions of the Nervous System

    • The nervous system is divided into central and peripheral components.
    • Central Nervous System (CNS) includes the brain and spinal cord, responsible for processing information.
    • Peripheral Nervous System (PNS) consists of cranial and spinal nerves, connecting the CNS to the rest of the body.

    Somatic and Autonomic Nervous Systems

    • Somatic Nervous System is associated with voluntary control, linking the CNS to skin and skeletal muscles.
    • Autonomic Nervous System regulates involuntary functions, connecting the CNS to visceral organs and consisting of sympathetic (emergency response) and parasympathetic components (rest and digest).

    Structure of the Spinal Cord

    • The spinal cord is composed of several key structures: central canal, dorsal root, dorsal root ganglion, gray matter, white matter, and ventral root.
    • Central Canal contains cerebrospinal fluid, providing cushioning and support.
    • Dorsal Root includes sensory neurons’ cell bodies and transmits sensory information to the spinal cord.
    • Gray Matter primarily consists of interneurons and some motor neurons; it is characterized by the absence of myelin.
    • White Matter, appearing white due to myelination, consists of nerve tracts that facilitate communication within the spinal cord, organized into anterior, posterior, and lateral funiculi.
    • Ventral Root carries axons of motor neurons that originate in the gray matter, facilitating motor control.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    This quiz focuses on the functional classification of neurons, including sensory, interneurons, and motor neurons. Each type of neuron plays a crucial role in the nervous system, relaying information and coordinating responses. Test your understanding of these essential components of neural function.

    More Like This

    Title and Description Genius
    3 questions
    Quiz
    5 questions

    Quiz

    TrustworthyZebra6967 avatar
    TrustworthyZebra6967
    Types of Neurons
    12 questions

    Types of Neurons

    PurePhotorealism avatar
    PurePhotorealism
    Use Quizgecko on...
    Browser
    Browser