Trivia Quiz: How Much Do You Know About Spinal Nerves?

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| By Meghan1129
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Trivia Quiz: How Much Do You Know About Spinal Nerves? - Quiz

How much do you know about spinal nerves? The spinal nerves are made up of mixed types of nerves, and they originate from the spinal cord. They send motor, sensory, and autonomic signals between the CNS and the body. Want to learn more about them? Take up this quiz and keep a lookout for others like it on the subject. All the best!


Questions and Answers
  • 1. 

    Serves the deep muscles and skin of the posterior surface of the trunk. Do not form plexuses.

    • A.

      Spinal nerve trunk

    • B.

      Anterior ramus

    • C.

      Thoracic nerves

    • D.

      Posterior ramus

    • E.

      Posterior root

    Correct Answer
    D. Posterior ramus
    Explanation
    The posterior ramus serves the deep muscles and skin of the posterior surface of the trunk. Unlike the anterior ramus, the posterior ramus does not form plexuses. The plexuses are formed by the anterior rami of the spinal nerves and are responsible for innervating the limbs. Therefore, the correct answer is posterior ramus.

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  • 2. 

    Contains sensory nerve fibers that transmit nerve impulses from the periphery into the spinal cord.

    • A.

      Dermatones

    • B.

      Anterior ramus

    • C.

      Anterior root

    • D.

      Posterior root

    • E.

      Cervical plexuses

    Correct Answer
    D. Posterior root
    Explanation
    The posterior root contains sensory nerve fibers that transmit nerve impulses from the periphery into the spinal cord. This means that it is responsible for carrying sensory information, such as touch or pain, from the body to the spinal cord. The other options listed are not specifically related to carrying sensory information, making the posterior root the correct answer.

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  • 3. 

    The area of the skin that provides sensory input to one pair of spinal nerves or to cranial nerve V.

    • A.

      Posterior ramus

    • B.

      Dermatones

    • C.

      Thoracic nerves

    • D.

      Anterior root

    • E.

      Spinal nerve trunk

    Correct Answer
    B. Dermatones
    Explanation
    Dermatones are specific areas of the skin that are innervated by sensory fibers from a single pair of spinal nerves or cranial nerve V. These areas have a unique pattern and can be used to diagnose the location of nerve damage or dysfunction. Therefore, dermatones are the correct answer as they represent the area of the skin that provides sensory input to a specific set of nerves.

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  • 4. 

    Contains motor neuron axons which transmit nerve impulses from the spinal cord to effector organs and cells.

    • A.

      Posterior ramus

    • B.

      Dermatones

    • C.

      Posterior root

    • D.

      Anterior root

    • E.

      Spinal nerve trunk

    Correct Answer
    D. Anterior root
    Explanation
    The anterior root is the correct answer because it contains motor neuron axons that transmit nerve impulses from the spinal cord to effector organs and cells. The posterior ramus is responsible for innervating the muscles and skin of the back, while dermatomes are specific areas of skin that are innervated by a single spinal nerve. The posterior root carries sensory information from the body to the spinal cord, and the spinal nerve trunk is the combination of both the anterior and posterior roots.

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  • 5. 

    Anterior rami of spinal nerves T2-T12 do not enter into the formation of plexuses and travel directly to the intercostal regions and the nearby muscles and skin regions that they innervate.

    • A.

      Posterior ramus

    • B.

      Dermatomes

    • C.

      Thoracic nerves

    • D.

      Spinal nerve trunk

    • E.

      Anterior ramus

    Correct Answer
    C. Thoracic nerves
    Explanation
    The correct answer is thoracic nerves. The explanation is that the anterior rami of spinal nerves T2-T12, also known as the thoracic nerves, do not enter into the formation of plexuses. Instead, they travel directly to the intercostal regions and the nearby muscles and skin regions that they innervate. This is in contrast to the anterior rami of other spinal nerves, which do contribute to the formation of plexuses.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 07, 2010
    Quiz Created by
    Meghan1129
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