Sensory innervation of the upper lip in the Domestic pig (Sus scrofa f. domestica)

Abstract

The corpuscular sensory structures in the corium of pigs’ lip are mostly represented by simple lamellar corpuscles, which occur in 3 basic variants: with the axon straight or bended, with the axon divided into branches and with division of the distal part of the corpuscle. The last two types occur only in 9.4% of cases and are also called Golgi-Mazzoni corpuscles. Glomerular sensory corpuscles occur only sporadically. Both these kinds of sensory corpuscles serve the mechano perception and adapt rapidly.