title: Anatomy and cholinergic innervation of the sinus paranalis in dogs.
abstract: Conventional methods have been used to study the general configuration of the wall of the Sinus paranalis in dogs. Apocrine tubular glands, elastic fibres and smooth-muscle fibres are the more significant elements of the wall, together with the epithelium and connective tissue. By means of the immunohistochemical method described in this paper, the results provide histochemical evidence for the presence of an AChE-positive reaction, and supposedly cholinergic nerve fibres in the wall of the dog anal sacs, mainly associated with subepithelial smooth muscle, vessels, and glands.
authors.affiliation: Department of Anatomy and Embriology, Faculty of Veterinary Medicine, Lugo, Spain.
authors.forename: I
authors.initials: I
authors.lastname: Salazar
authors.forename: P
authors.initials: P
authors.lastname: Fernández de Troconiz
authors.forename: M J
authors.initials: MJ
authors.lastname: Cifuentes
authors.forename: P S
authors.initials: PS
authors.lastname: Quinteiro
mesh_terms: D000110:Acetylcholinesterase / Q000378:metabolism; D000695:Anal Sacs / Q000033:anatomy & histology* / Q000201:enzymology / Q000294:innervation; D000818:Animals; D004285:Dogs / Q000033:anatomy & histology*; D005260:Female; D007124:Immunoenzyme Techniques; D008297:Male
chemical_list: D000110:Acetylcholinesterase