Activity 4: Sensory Pathways: Fill in the following fhrts: Spinothalamic Pathway

Question

Activity 4: Sensory Pathways: Fill in the following fhrts: Spinothalamic Pathway: The order neurons take the sensory info to the gyrus of thecortex of the - - lobe The 2hd order neurons synapse with the order neurons in the The 2nd order neurons ascend up through the of the , and brainstem. Decussation of the 2d order neurons occurs in the order neurons in the The 1t order neurons synapse with the On meau a hom of the spinal cord Axons of sensory neurons enter the spinal cord at the horn. Axons of sensory neurons form the root Axons of sensory neurons form spinal nerves Sensory neurons form order neurons Temperature receptor in arm

Explanation / Answer

Temperature receptor in arm-pseudounipolar neuron-dorasal root -posterior horn-2nd order neuron and medulla-spinal cord-medulla ,pons,midbrain-3rd order neuron in thalamus- 3rd order neuron,somatosensory cortex,postcentral gyrus,frontal lobe.

2.dorsal column pathway

Pseudo unipolar neuron-1st order -dorsal root-posterior horn-2nd order neuron in lower medulla-cross in medulla-medulla,pons,midbrain-3rd order neuron in thalamus-3rd order neuron,somatosensory cortex,frontal lobe.

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