Cranial Nerves: Functions And Origin! Quiz

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Cranial Nerves: Functions And Origin! Quiz - Quiz


Would you like to try this quiz about cranial nerves? Cranial nerves are the nerves that come from the brain. There are generally twelve pairs of cranial nerves. These nerves transmit information between the brain and parts of the body. The focus is the head and neck areas, including sight, taste, smell, and hearing. This quiz will open your awareness of the cranial nerve. You can do it.


Questions and Answers
  • 1. 

    What is the function of the sensory TRIGEMINAL nerve?

    • A.

      Visual tracking

    • B.

      Pain, temp, touch on face

    • C.

      Eye movement

    Correct Answer
    B. Pain, temp, touch on face
    Explanation
    The sensory TRIGEMINAL nerve is responsible for transmitting signals related to pain, temperature, and touch on the face. It is not involved in visual tracking or eye movement. This nerve plays a crucial role in providing sensory information from the face to the brain, allowing us to perceive and respond to various stimuli on our face.

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  • 2. 

    Where does the OLFACTORY nerve originate?

    • A.

      Nasal mucosa

    • B.

      Pons

    • C.

      Medulla

    Correct Answer
    A. Nasal mucosa
    Explanation
    The olfactory nerve, also known as cranial nerve I, originates in the nasal mucosa. This nerve is responsible for the sense of smell and carries sensory information from the nasal cavity to the brain. The olfactory nerve fibers extend from the olfactory epithelium in the nasal mucosa and pass through the cribriform plate of the ethmoid bone to reach the olfactory bulb in the brain. From there, the olfactory information is processed and interpreted in the olfactory cortex, allowing us to perceive different smells.

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  • 3. 

    Is the OPTIC nerve sensory, motor, or mixed?

    • A.

      Mixed

    • B.

      Motor

    • C.

      Sensory

    Correct Answer
    C. Sensory
    Explanation
    The optic nerve is responsible for transmitting visual information from the eye to the brain. It carries sensory signals, specifically visual signals, and does not have any motor function. Therefore, the correct answer is sensory.

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  • 4. 

    What function do ABDUCENS and TROCHLEAR do?

    • A.

      Eye movement

    • B.

      Pupil dilation

    • C.

      Facial gestures

    Correct Answer
    A. Eye movement
    Explanation
    ABDUCENS and TROCHLEAR are cranial nerves that are responsible for controlling eye movement. The ABDUCENS nerve controls the lateral rectus muscle, which moves the eye outward, while the TROCHLEAR nerve controls the superior oblique muscle, which moves the eye downward and laterally. Therefore, their primary function is to coordinate and control the movement of the eyes, allowing us to look in different directions and track objects.

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  • 5. 

    The OCCULOMOTOR nerve's function is visual tracking and?

    Correct Answer
    pupil constriction/dilation
    pupil dilation/constriction
    pupil constriction/ dilation
    pupil dilation/ constriction
    Explanation
    The correct answer is pupil constriction/dilation. The oculomotor nerve is responsible for controlling the muscles that constrict and dilate the pupil, allowing for changes in the size of the pupil in response to light conditions.

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  • 6. 

    What nerves are only motor?

    • A.

      Occulomotor, olfactory, trochlear, trigeminal, vagus

    • B.

      Occulomotor, trochlear, abducens, accessory, hypoglossal

    • C.

      Facial, optic, trigeminal,abducens, glossopharyngeal

    Correct Answer
    B. Occulomotor, trochlear, abducens, accessory, hypoglossal
    Explanation
    The correct answer is occulomotor, trochlear, abducens, accessory, hypoglossal. These nerves are only motor because they primarily carry signals from the brain to muscles, allowing for voluntary movement and control. They do not have sensory functions like transmitting information from the body to the brain.

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  • 7. 

    Which nerves are sensory?

    • A.

      Olfactory, optic, vestibulocochlear

    • B.

      Vagus, optic, trigeminal, abducens

    • C.

      Olfactory, optic, vagus

    Correct Answer
    A. Olfactory, optic, vestibulocochlear
    Explanation
    The correct answer is olfactory, optic, vestibulocochlear. These nerves are sensory because they are responsible for transmitting sensory information from different parts of the body to the brain. The olfactory nerve is responsible for the sense of smell, the optic nerve is responsible for vision, and the vestibulocochlear nerve is responsible for hearing and balance.

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  • 8. 

    Which nerves are mixed?

    • A.

      Trigeminal, vestibulococlear, vagus, hypoglossal

    • B.

      Trigeminal, facial, glossopharyngeal, vagus

    • C.

      Optic, trochlear, abducens, vagus

    Correct Answer
    B. Trigeminal, facial, glossopharyngeal, vagus
    Explanation
    The correct answer is trigeminal, facial, glossopharyngeal, vagus. These nerves are considered mixed because they contain both sensory and motor fibers. The trigeminal nerve is responsible for sensation in the face and motor functions such as chewing. The facial nerve controls facial expressions and also carries taste sensations. The glossopharyngeal nerve is involved in swallowing and taste, while the vagus nerve has various functions including controlling the muscles of the throat and regulating the heart and digestive system.

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  • 9. 

    The FACIAL nerve controls taste from______of tongue.

    Correct Answer
    2/3
    Explanation
    The facial nerve controls taste from 2/3 of the tongue.

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  • 10. 

    What does nerve VIII control?

    • A.

      Blance and hearing

    • B.

      Eye movement

    • C.

      Facial expression

    Correct Answer
    A. Blance and hearing
    Explanation
    Nerve VIII, also known as the vestibulocochlear nerve, is responsible for controlling balance and hearing. It transmits sensory information from the inner ear to the brain, allowing us to maintain our equilibrium and perceive sound. Dysfunction or damage to this nerve can result in symptoms such as dizziness, vertigo, hearing loss, and problems with balance.

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  • 11. 

    Which nerve control movement of the tongue for speech?

    • A.

      Vagus

    • B.

      Hypoglossal

    • C.

      Glossopharyngeal

    Correct Answer
    B. Hypoglossal
    Explanation
    The hypoglossal nerve controls the movement of the tongue for speech. This nerve innervates the muscles of the tongue, allowing it to move in various directions and positions necessary for speech production. Dysfunction of the hypoglossal nerve can lead to difficulties in articulating speech sounds and may result in speech disorders such as dysarthria. The vagus and glossopharyngeal nerves also play important roles in speech production, but they primarily control other functions such as swallowing and sensory feedback.

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  • 12. 

    Which nerves originate from the medulla?

    • A.

      Glossophyaryngeal, vagus, accessory, hypoglossal

    • B.

      Vestibulocochlear, accessory, facial, trigeminal

    • C.

      Trochlear, trigemnial, abducens

    Correct Answer
    A. Glossophyaryngeal, vagus, accessory, hypoglossal
    Explanation
    The correct answer is glossopharyngeal, vagus, accessory, hypoglossal. These nerves originate from the medulla, which is part of the brainstem. The glossopharyngeal nerve is responsible for sensory and motor functions in the throat and tongue. The vagus nerve controls various organs in the body, including the heart and digestive system. The accessory nerve controls muscles in the neck and shoulders. The hypoglossal nerve controls the movement of the tongue.

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  • 13. 

    Which cranial nerve controls swallowing?

    • A.

      Hypoglossal

    • B.

      Vagus

    • C.

      Glossopharyngeal

    Correct Answer
    C. Glossopharyngeal
    Explanation
    The cranial nerve that controls swallowing is the glossopharyngeal nerve. This nerve is responsible for transmitting sensory information from the back of the tongue, tonsils, and pharynx, as well as controlling the muscles involved in swallowing. It plays a crucial role in coordinating the complex process of swallowing, allowing food and liquids to pass from the mouth to the esophagus.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 06, 2009
    Quiz Created by
    Loves.it

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