Physically active animals have less mu-opioid-expressing neurons projecting to the spinal cord in the rostral ventromedial medulla, but not the nucleus raphe obscurus/nucleus raphe pallidus, when compared to sedentary animals. Click to show full abstract
Physically active animals have less mu-opioid-expressing neurons projecting to the spinal cord in the rostral ventromedial medulla, but not the nucleus raphe obscurus/nucleus raphe pallidus, when compared to sedentary animals.
               
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