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10 Cards in this Set

  • Front
  • Back
Which spinal cord tracts are the conscious afferents?
Fasiculus gracile
Fasiculus cuneatus
Spinothalamic
Which conscious afferent responds to touch and pressure in the lumbar and sacral regions?
Fasiculus gracile
Which conscious afferent responds to touch and pressure in the cervical and thoracic regions?
Fasiculus cuneatus
Which conscious afferent responds to heat/cold/pain?
spinothalamic
What does the spinothalamic respond to?
heat/cold
pain
What does the fasiculus gracile respond to?
touch and pressure in the lumbar and sacral regions
What does the fasiculus cuneatus respond to?
touch and pressure in the cervical and thoracic regions
Does the spinothalamic tract decuss? If so, where?
Yes, in the spinal cord.
Does the fasiculus gracile decuss? If so, where?
Yes, in the medulla of the brain prior to the medial lemniscus.
Explain the general pathway of conscious afferents.
Spinal cord - thalamus - somatic sensory region of the brain

Also back up into reticular system, and reflex arc along efferent nerve.