Somatosensory System Organization Quiz
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Questions and Answers

Which ascending tract is responsible for transmitting pain and temperature sensations from the trunk and limbs?

  • Lateral spinothalamic tract (correct)
  • Dorsal spinocerebellar tract
  • Trigeminothalamic tract
  • Dorsal column-Medial lemniscal system

Where do cranial nerve sensory ganglions for the face and head serve as 1st order neurons in conscious somatosensory pathways?

  • Ventral posterolateral nucleus
  • Spinal cord
  • Thalamus
  • Dorsal root ganglion (correct)

Which type of pain is characterized by being sharp and well-localized?

  • Fast pain (correct)
  • Slow pain
  • Burning pain
  • Aching pain

In the somatosensory system, which type of receptors are distributed all over the body and not concentrated at specific locations?

<p>General somatic afferent (GSA) (D)</p> Signup and view all the answers

Which category of somatosensory modalities involves responding to tissue injury with dull, aching, and burning sensations?

<p>Slow pain (B)</p> Signup and view all the answers

Where are the receptors for special senses like taste and smell located?

<p>In specialized sense organs (A)</p> Signup and view all the answers

What is the function of the spinoreticular tract in the somatosensory pathway?

<p>Causes alertness and arousal in response to painful stimuli (B)</p> Signup and view all the answers

Which receptor is responsible for detecting pain and temperature sensations in the lateral spinothalamic tract?

<p>Free nerve ending (B)</p> Signup and view all the answers

Where does the lateral spinothalamic tract cross over to the opposite side of the body?

<p>Anterior white commissure (C)</p> Signup and view all the answers

What sensory loss occurs on the contralateral side when there is damage to the anterior spinothalamic tract?

<p>Loss of pain and temperature sensations (C)</p> Signup and view all the answers

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