Direct pathway to the brain.
Whole-body autoradiographic stuidies demonstrated that, when isotopically labeled glucose is placed in the ligated oropharynx, there is a rapid movement of the isotope directly to the intracranial cavity. This passage involves nonspecific diflision, bypassing all recognized rouctes to the brain.
D000818:Animals; D001345:Autoradiography; D001923:Brain Chemistry; D002247:Carbon Isotopes; D004058:Diffusion; D004386:Duodenum; D005947:Glucose / Q000008:administration & dosage / Q000378:metabolism*; D008297:Male; D009055:Mouth; D051381:Rats
D002247:Carbon Isotopes; D005947:Glucose