Vía Somatosensitiva: Columna dorsal /lemnisco medial

Detailed Explanation of Sensory Pathways

In this section, the speaker delves into the intricate details of sensory pathways in the nervous system, focusing on the transmission of sensory information and the processing involved.

Neuronal Circuits and Functions

• Sensory pathways involve a network of neurons forming neural circuits to carry out functions in the nervous system.

• These functions can be sensory or motor, with conscious pathways known as somatic pathways.

Transmission of Sensory Information

• The dorsal column-medial lemniscus pathway is responsible for transmitting touch, pressure, vibration, and proprioception stimuli.

• Proprioception involves recognizing body segments in space through receptors primarily located in muscles and joints.

Processing of Sensory Stimuli

• Sensory stimuli become conscious when they reach the primary somatosensory area after undergoing synapses in various regions.

• Depending on receptor locations, sensory pathways take different routes; from waist down including lower limbs, signals travel via posterior root to spinal cord's posterior column.