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1. The Somatic Sensory System Neuro Quiz Identify the correct question Click to Play!  Michael McKeough 2008

2. Somatic Sensory SystemNeuro Quiz Click category value to begin.

3. Click to reveal the question Physiology100 • This constitutes information for the sensory system. What is a significant change in energy level? Return to Game Board

4. Click to reveal the question Physiology200 • This is defined as the energy change sufficient to cause receptors to generate a receptor potential. What is an adequate stimulus? Return to Game Board

5. Click to reveal the question Physiology300 • These neurons relay information from receptors in the periphery into the CNS. • Their cell bodies are located in DRG or CNN. • They are pseudo-monopolar cells. What are first-order neurons? Return to Game Board

6. Click to reveal the question Physiology400 • This is the process by which sensory receptors transform changes in the adequate stimulus into changes in neuronal discharge (electrochemical energy). What is information transduction? Return to Game Board

7. Click to reveal the question Physiology500 • This is the form of energy to which skin, muscle, and joint receptors are most sensitive. What is mechanical deformation? Return to Game Board

8. Click to reveal the question DCML100 • These are the sensory modalities to which the DCML is selectively sensitive. What are discriminative tactile sense, conscious proprioception, vibration, and stereognosis? Return to Game Board

9. Click to reveal the question DCML200 • This is the spinal pathway by which discriminative tactile information from the upper extremity is conveyed. • It is located laterally in the dorsal column, from T6 and above. What is the fasciculus cuneatus? Return to Game Board

10. Click to reveal the question DCML300 • This is the thalamic relay center for the DCML. • It contains the cell bodies of third-order neurons. What is the ventral posterior lateral (VPL) nucleus? Return to Game Board

11. Click to reveal the question DCML400 • Third-order neurons projecting from the thalamus to the primary sensory cortex pass through this area. • This white matter area separates the thalamus from the caudate nucleus. What is the internal capsule? Return to Game Board

12. Click to reveal the question DCML500 • This construct depicts the somatotopic organization of the primary sensory cortex. • It portrays a distorted representation of the body where body parts are portrayed proportional to the amount of brain space dedicated to the control of that body part. What is the sensory homunculus? Return to Game Board

13. Click to reveal the question Spinothalamic System100 • The modalities to which the spinothalamic system is most sensitive. What are pain and temperature from the contralateral body? Return to Game Board

14. Click to reveal the question Spinothalamic System 200 • The component of the spinothalamic system that conveys information about slow (clinical) pain. What is the paleospinothalamic tract? Return to Game Board

15. Click to reveal the question Spinothalamic System 300 • At or about the level of entry. What is the level of the neuraxis at which this system crosses the midline (decussates)? Return to Game Board

16. Click to reveal the question Spinothalamic System 400 • The thalamic relay center by which information about pain and temperature makes its way into the limbic system. What is the intralaminar nucleus? Return to Game Board

17. Click to reveal the question Spinothalamic System 500 • The type of organization found throughout this system. • Helps account for why patients may have difficulty localizing the source of their pain. What is not somatotopically organized? Return to Game Board

18. Click to reveal the question Trigeminal System100 • The modalities to which the trigeminal system is most sensitive. What are pain and temperature from the contralateral face? Return to Game Board

19. Click to reveal the question Trigeminal System 200 • The dermatomes of the face. What are the ophthalmic, maxillary, and mandibular? Return to Game Board

20. Click to reveal the question Trigeminal System 300 • The pathway by which first-order neurons project to second-order neurons. What is the descending tract of the trigeminal nerve (CN V)? Return to Game Board

21. Click to reveal the question Trigeminal System 400 • The location of the cell bodies of second-order neurons in the central trigeminal system. What is the spinal nucleus of the trigeminal system? Return to Game Board

22. Click to reveal the question Trigeminal System 500 • The thalamic relay center for trigeminal information in route to the primary sensory cortex. What is the ventral posteromedial (VPM) nucleus? Return to Game Board

23. Click to reveal the question Pathology 100 • Following a lesion of the primary sensory cortex, the side of the body on which sensory impairments appear. What is contralateral or opposite? Return to Game Board

24. Click to reveal the question Pathology 200 • The inability to recognize objects by their tactile qualities in the absence of vision. What is astereognosis? Return to Game Board

25. Click to reveal the question Pathology 300 • The leading theory of analgesia. • Pain relief is produced by the activation of the periaqueductal gray nucleus and release of encephalon. • Encephalons lodge in postsynaptic receptor sites of transmission neurons blocking the uptake of transmitter substance from first-order neurons. What is the opiate theory? Return to Game Board

26. Click to reveal the question Pathology 400 • Symptoms of this condition include: • Spastic paralysis on the same side as the lesion. • Absence of discriminative tactile, vibration, and conscious proprioception sensation on the same side as the lesion. • Absence of pain and temperature sensation on the side opposite the lesion. What is a hemisection of the spinal cord or Brown-Sequard syndrome? Return to Game Board

27. Click to reveal the question Pathology 500 • Symptoms of this condition include: • Absence of pain and temperature sensation in the ipsilateral face and contralateral body. • Loss of corneal reflex, ipsilaterally. • Nystagmus and ataxia. What is lateral medullary or Wallenberg syndrome? Return to Game Board