The gracile f asciculus is carrying all of the information from the lower half of the body

The gracile f asciculus is carrying all of the information from the lower half of the body

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Somatosensory * The gracile f asciculus is carrying all of the information from the lower half of the body (T6, midthoracic and below) * The cuneate fasciculus is carrying information from the upper half of the body (T6 from the upper limb and chest). Somatotopic Oganization * There is a somatotopic representation of the body in the dorsal columns (fasciculus gracilis and fasciculus cuneatus). * Caudal (sacral and lumbar) body parts are represented medially * Rostral segments (upper thoracic and cervical) are represented laterally . * Nucleus gracilis receives its input from about T7 and downward, * While nucleus cuneatus receives its input from spinal levels above T7 The Role of the Thalamus in Sensory Processing * Brain region that serves as a switching center for all sensory signals passing from the brain stem to other brain regions EXCEPT SMELL. * There are 2 thalami, and they are located on either side of the 3rd ventricle.
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