Pain And Temperature Sensation

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Quizzes Created: 24 | Total Attempts: 15,538
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  • 1/11 Questions

    The fact that different thermoreceptors have overlapping receptive fields allows us to respond to a range of temps

    • True
    • False
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About This Quiz

The human body is a very delicate. It reacts very fast to pain and difference in temperatures, the question arises on why it does. The quiz below tests more on pain and temperature sensation.

Sensory Systems Quizzes & Trivia

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  • 2. 

    Thresholds are ____ for touch and temperature and ____ for pain.

    • High; low

    • High; high

    • Low; high

    • Low; low

    Correct Answer
    A. Low; high
    Explanation
    Touch and temperature have lower thresholds, meaning that they require less intensity to be detected by our sensory receptors. On the other hand, pain has a higher threshold, meaning that it requires a greater intensity to be perceived. Therefore, the correct answer is "low; high".

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  • 3. 

    When there is damage to cells, the cells will release lots of ___ which will then stimulat the nociceptors.

    • Na

    • K

    • Cl

    • H

    Correct Answer
    A. K
    Explanation
    When there is damage to cells, the cells will release lots of potassium ions (K+) which will then stimulate the nociceptors. Potassium ions are essential for maintaining the electrical balance in cells. In case of cell damage, the release of potassium ions triggers a response in nociceptors, which are sensory receptors responsible for detecting pain. This activation of nociceptors sends pain signals to the brain, alerting the body to the presence of tissue damage.

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  • 4. 

    Central connections (for the head) synapse first in the spinal cord

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Central connections for the head synapse first in the brain stem
    Central connections for the body synapse first in the spinal cord

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  • 5. 

    Nociceptors (pain receptors) include what type of nerves?

    • Group I

    • Group II

    • Group III

    • Group IV

    • More than one of the above

    Correct Answer
    A. More than one of the above
    Explanation
    deep pain --> group IV
    pricking pain --> group III

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  • 6. 

    Pain, temperature and touch information synapses in the ______ horn of the spinal cord in either the _________ or __________

    • Ventral horn; substantia gelationsa; nucleus proprius

    • Dorsal horn; substantia gelationsa; nucleus proprius

    • Ventral horn; gracile fasculus; cuneate fasciculus

    • Dorsal horn; substantia gelationsa; nucleus proprius

    Correct Answer
    A. Dorsal horn; substantia gelationsa; nucleus proprius
    Explanation
    Pain, temperature, and touch information synapses in the dorsal horn of the spinal cord in either the substantia gelatinosa or nucleus proprius.

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  • 7. 

    Central connections (body) for pain and temp is sent through the _________ tract to the ____ of the thalamus.

    • Spinothalamic ; VPM

    • Trigeminothalamic; VPM

    • Spinothalamic; VPL

    • Trigeminothalamic; VPL

    Correct Answer
    A. Spinothalamic; VPL
    Explanation
    The correct answer is Spinothalamic; VPL. The spinothalamic tract is responsible for transmitting pain and temperature sensations from the body to the brain. These sensations are then relayed to the ventral posterolateral nucleus (VPL) of the thalamus, which serves as a relay station for sensory information before it is further processed and transmitted to the cerebral cortex. The trigeminothalamic tract is involved in transmitting sensory information from the face, not the body. Therefore, the combination of the spinothalamic tract and the VPL nucleus is the most appropriate choice for central connections for pain and temperature.

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  • 8. 

    The homonculus motor cortex is on the ___________ and the homonculus sensory cortex is on the _____________

    • Post central gyrus; pre central gyrus

    • Pre central gyrus; post central gyrus

    Correct Answer
    A. Pre central gyrus; post central gyrus
    Explanation
    The homunculus motor cortex is located on the pre central gyrus, while the homunculus sensory cortex is located on the post central gyrus. This is because the pre central gyrus is responsible for controlling voluntary movements, and the motor cortex is located in this area. On the other hand, the post central gyrus is responsible for processing sensory information from different parts of the body, and the sensory cortex is located in this area.

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  • 9. 

    The trigeminothalamic tract synapses inthe ___ of the thalamus

    • VPL

    • VPM

    • Post central gyrus

    • Reticular formation

    Correct Answer
    A. VPM
    Explanation
    The trigeminothalamic tract synapses in the VPM (ventral posteromedial) nucleus of the thalamus. The VPM nucleus is responsible for relaying sensory information from the face, including pain, temperature, and touch, to the primary somatosensory cortex.

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  • 10. 

    The trigeminothalamic tract sends info to the:

    • Hypothalamus

    • Brodmann area 3,1,2

    • Reticular formation

    • All of the above

    • 2 of the above

    Correct Answer
    A. All of the above
    Explanation
    The trigeminothalamic tract is a neural pathway that carries sensory information from the trigeminal nerve to various regions of the brain. This includes the hypothalamus, which is responsible for regulating various bodily functions such as temperature, hunger, and thirst. It also sends information to Brodmann area 3, 1, and 2, which are regions of the cerebral cortex involved in somatosensory processing. Additionally, the trigeminothalamic tract sends information to the reticular formation, which plays a role in regulating arousal and consciousness. Therefore, the correct answer is "all of the above" as the trigeminothalamic tract sends information to the hypothalamus, Brodmann area 3, 1, and 2, and the reticular formation.

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  • 11. 

    Describe why things are more painful during sleep.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 24, 2011
    Quiz Created by
    Tseemore
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