11 Respiratory system Nasal cavity
External skin (nose) with epidermis, hair, sweat glands and sebaceous glands
Subcutis
Nasal cartilage
Stratified squamous epithelium with serous glands and vessels in t ela submucosa
Nasal vestibule, young dog. H.E stain; x40.
Nasal opening
Mucosa of nasal vestibule with markedly papillated stratified squamous epithelium (partial section of hyaline cartilage in deeper portion)
Subcutis
External skin with sinus hair
Nasal vestibule, young dog. H.E stain; x40.
Respiratory mucosa with goblet cells
Individual nasal glands with secretory ducts
Submucosal venous network
Periosteum
Bony foundation of nasal concha with ossified islets (intramembranous ossification) and hyaline cartilage remnants
Respiratory mucosa with goblet cells
Nasal concha, young dog. H.E. stain; x100. 11 Respiratory system Nasal cavity
Respiratory mucosa with goblet cells Individual nasal glands with secretory ducts
Submucosal venous network
Cartilaginous foundation of nasal concha
Individual nasal glands with secretory ducts
Nasal concha, calf. H.E. stain; x40.
Respiratory mucosa with goblet cells Individual nasal glands with secretory ducts Submucosal venous network
Perichondrium
Cartilaginous foundation of nasal concha
Nasal concha, calf. H.E. stain; x100.
Free surface of respiratory mucosa with cilia and mucous remnants
Pseudostratified columnar epithelium
Endoepithelial, alveolar mucous gland cells
Lamina propria mucosae
Respiratory mucosa, nasal concha, sheep. Azan stain; x400. 11 Respiratory system Nasal cavity
Fila olfactoria
Fila olfactoria Multipolar nerve cells in olfactory bulb
Fila olfactoria, cat. Azan stain; x100.
Olfactory mucosa
Nuclei of sustentacular cells Nuclei of sensory cells Subepithelial vascular network Fila olfactoria
Tubuloacinar, branched, serous glands
Olfactory mucosa, cat. Azan stain; x200.
Free surface of olfactory mucosa with sensory cilia Nuclei of sustentacular cells Nuclei of sensory cells (bipolar neurons) Nuclei of basal cells Subepithelial vascular network
Tubuloacinar, branched, serous glands
Fila olfactoria
Olfactory mucosa, cat. Azan stain; x380. 11 Respiratory system Nasal cavity
Free surface of olfactory epithelium
Nuclei of sustentacular cells Nuclei of sensory cells (bipolar nerve cells)
Nuclei of basal cells Subepithelial vascular network
Tubuloacinar, branched, serous glands
Olfactory mucosa, dog. H.E. stain; x40.
Olfactory mucosa Subepithelial vascular network
Hyaline nasal cartilage with vascular networks
Olfactory mucosa, young goat. H.E stain; x200.
Free surface of olfactory mucosa with sensory cilia and mucous remnants
Nuclei of sensory cells (bipolar neurons)
Nucleus of sustentacular cell
Nuclei of basal cells
Tubuloacinar, branched, serous glands
Olfactory mucosa, goat. Bodian stain; x480.