Sensory information enters spinal cord through dorsal roots or brain stem via cranial nerves
Three main sensory pathways: dorsal column, anterolateral, dorsal and ventral spinocerebellar tracts
Dorsal column pathway: first order neurons enter dorsal column, synapse in cuneate and gracile nuclei
Second order neurons originate in cuneate and gracile nuclei, decussate to opposite side and pass upward to thalamus through medial lemnisci pathways
Additional decussated fibers from sensory nucleus of trigeminal nerve join medial lemnisci pathways
Third order neurons project mainly to somatic sensory area located at postcentral gyrus
Somatic sensory area occupies cerebral cortex of anterior portion of parietal lobe
Dorsal column pathway is part of medial lemniscal system
Anterolateral pathways make up spinothalamic pathway
Dorsal and ventral spinocerebellar tracts carry proprioceptive information to cerebellum.

Test your knowledge of the sensory pathways in the human body with this informative quiz. Learn about the different routes sensory information takes to reach the brain, including the dorsal column, anterolateral, and dorsal and ventral spinocerebellar tracts. Discover how these pathways work together and their specific functions. With keywords such as somatic sensory area, medial lemniscal system, and spinothalamic pathway, this quiz is perfect for those interested in neuroscience or studying for medical exams.