Where is the major relay station of sensory information located?
A)Basal ganglia
B)Midbrain
C)Thalamus
D)Hypothalamus

Question

Quizplus · Accepted Answer

Although the organization of all of the ascending tracts is complex, the principal target for nociceptive afferents is the thalamus, which, in general, is the major relay station of sensory information. The Ad and C fibers synapse in the laminae of the dorsal horn, cross over to the contralateral spinothalamic tract, and then ascend to synapse in the midbrain through the neospinothalamic and paleospinothalamic tracts. Impulses are then conducted to the sensory cortex. Descending pain inhibition is initiated in the cerebral cortex or from the midbrain and medulla. The hypothalamus has a major role in temperature regulation. A complex interaction of neural networks and neurotransmitters promote wakefulness and sleep. The hypothalamus, brainstem, and basal forebrain are involved in promoting wakefulness.

Where Is the Major Relay Station of Sensory Information Located