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Mastering the Divisions of the Nervous System
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Mastering the Divisions of the Nervous System

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Questions and Answers

Which type of neuron carries the response signal to the effector?

  • Motor Neuron (correct)
  • Integration Center
  • Sensory Neuron
  • Effector

    • Which division of the nervous system carries signals from the brain to muscles for movement?

  • Autonomic Nervous System (ANS)
  • Sensory Nerves
  • Peripheral Nervous System (PNS) (correct)
  • Central Nervous System (CNS)

    • Which layer of the eye contains light-sensitive cells (rods and cones) and sends visual signals to the brain?

  • Choroid, Iris, and Ciliary Body (Middle Layer)
  • Optic Nerve
  • Sclera and Cornea (Outer Layer)
  • Retina (Inner Layer) (correct)

    • Which of the following is responsible for hearing, as sound waves are converted into electrical signals here?

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

    What is the order of the meninges from deep to most superficial?

    <p>Dura mater, Arachnoid, Pia mater</p> Signup and view all the answers

    What is the function of the Autonomic Nervous System (ANS)?

    <p>Prepares the body for stress, increasing heart rate and redirecting blood flow</p> Signup and view all the answers

    Which type of receptor detects changes in temperature?

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

    What is the function of the Eustachian tube?

    <p>Equalize pressure in the middle ear</p> Signup and view all the answers

    Which layer of the eye is responsible for controlling pupil size?

    <p>Choroid, Iris, and Ciliary Body (Middle Layer)</p> Signup and view all the answers

    Which division of the nervous system prepares the body for stress, increasing heart rate and redirecting blood flow?

    <p>Sympathetic Nervous System</p> Signup and view all the answers

    What is the function of cerebrospinal fluid (CSF)?

    <p>Cushions and protects the brain and spinal cord</p> Signup and view all the answers

    Which cranial nerve is responsible for transmitting signals related to hearing and balance?

    <p>Vestibulocochlear (or Auditory)</p> Signup and view all the answers

    What is the function of the vestibule in the inner ear?

    <p>Involved in balance and spatial orientation</p> Signup and view all the answers

    Which type of receptor responds to mechanical pressure or distortion?

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

    What is the function of the ciliary body in the eye?

    <p>Shapes the lens for focusing</p> Signup and view all the answers

    Which division of the nervous system carries signals from the senses to the brain?

    <p>Peripheral Nervous System (PNS)</p> Signup and view all the answers

    Which cranial nerve is responsible for transmitting signals related to smell?

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

    Which layer of the meninges is the deepest and closest to the brain and spinal cord?

    <p>Pia mater</p> Signup and view all the answers

    Which type of receptor responds to pain stimuli?

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

    What is the function of the choroid in the eye?

    <p>Supplies blood to the eye</p> Signup and view all the answers

    What is the function of the semicircular canals in the inner ear?

    <p>Involved in balance and spatial orientation</p> Signup and view all the answers

    Which division of the nervous system controls basic functions and reflexes?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    Which part of a neuron transmits signals away from the cell body to other neurons or muscles?

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

    What is the function of the Pia mater in the meninges?

    <p>It is the deepest and closest layer to the brain and spinal cord.</p> Signup and view all the answers

    Which division of the nervous system carries signals from the senses to the brain?

    <p>Peripheral Nervous System (PNS)</p> Signup and view all the answers

    What is the function of the semicircular canals in the inner ear?

    <p>Detect changes in head position and rotational movement</p> Signup and view all the answers

    Which type of receptor detects specific chemicals, like taste and smell?

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

    Which part of a neuron transmits signals away from the cell body to other neurons or muscles?

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

    What is the function of the vestibule in the inner ear?

    <p>Involved in balance and spatial orientation</p> Signup and view all the answers

    Which layer of the eye is responsible for shaping the lens for focusing?

    <p>Choroid, Iris, and Ciliary Body (Middle Layer)</p> Signup and view all the answers

    Which division of the nervous system controls basic functions and reflexes?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    What is the function of the Pia mater in the meninges?

    <p>Senses the stimulus</p> Signup and view all the answers

    Which part of a neuron receives signals from other neurons?

    <p>Axon Terminals</p> Signup and view all the answers

    Which part of the neuron transmits the signal to the spinal cord?

    <p>Sensory Neuron</p> Signup and view all the answers

    Which division of the nervous system carries signals from the brain to muscles for movement?

    <p>Somatic Nervous System (SNS)</p> Signup and view all the answers

    Which division of the nervous system carries signals from the senses to the brain?

    <p>Peripheral Nervous System</p> Signup and view all the answers

    What is the function of the semicircular canals in the inner ear?

    <p>Detect changes in head position and rotational movement</p> Signup and view all the answers

    Which layer of the meninges is the deepest and closest to the brain and spinal cord?

    <p>Pia mater</p> Signup and view all the answers

    Which of the following is responsible for balance and spatial orientation?

    <p>Semicircular Canals</p> Signup and view all the answers

    What is the function of the Eustachian tube?

    <p>Equalizes pressure in the ear</p> Signup and view all the answers

    Which layer of the eye is responsible for detecting changes in temperature?

    <p>None of the above</p> Signup and view all the answers

    Study Notes

    Nervous System

    • Motor neurons carry response signals to effectors
    • Somatic nervous system carries signals from the brain to muscles for movement
    • Afferent division carries signals from the senses to the brain

    Eye and Vision

    • Rods and cones are light-sensitive cells in the retina, sending visual signals to the brain
    • Iris is responsible for controlling pupil size
    • Ciliary body is responsible for shaping the lens for focusing
    • Choroid layer supplies oxygen and nutrients to the retina

    Hearing and Balance

    • Cochlea is responsible for converting sound waves into electrical signals
    • Vestibule in the inner ear is responsible for balance and spatial orientation
    • Semicircular canals in the inner ear are responsible for detecting rotational movements

    Sensory Receptors

    • Thermoreceptors detect changes in temperature
    • Mechanoreceptors respond to mechanical pressure or distortion
    • Chemoreceptors detect specific chemicals, like taste and smell
    • Nociceptors respond to pain stimuli

    Meninges and Cerebrospinal Fluid

    • Pia mater is the deepest and closest layer to the brain and spinal cord
    • Cerebrospinal fluid (CSF) cushions and protects the brain and spinal cord
    • Arachnoid mater and dura mater are the middle and outer layers of the meninges

    Autonomic Nervous System

    • Controls basic functions and reflexes
    • Prepares the body for stress, increasing heart rate and redirecting blood flow

    Neuron Structure

    • Dendrites receive signals from other neurons
    • Axon transmits signals away from the cell body to other neurons or muscles

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    Description

    Test your knowledge on the divisions of the nervous system and the structures found in each! Learn about the Central Nervous System (CNS) and its components, such as the brain and spinal cord. Explore the Peripheral Nervous System (PNS) and its sensory and motor nerves.

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