[Corrosion anatomical studies of the rete mirabile and the brain basal vessels of pygmy goats].

The rete mirabile and cerebral arteries represent a multifunctional system. Age-associated morphological changes at the rete mirabile and major cerebral arteries were observed in pygmy goats. The most important arteries for cerebral circulation are the ramus rostralis and ramus caudalis of the maxillary artery. The persistence of the internal carotid artery ( = 80%) in newborn and adult goats is a quite new result. The thermoregulatory function of head fighting-mammals with a large frontal sinus and the mechanical function of the rete mirabile were discussed.