[MT] histologic features of the upper respiratory tract, larynx, and trachea

Epithelium of Vestibules of nasal cavities

Stratified squamous, keratinized to nonkeratinized

Epithelium of Most areas of nasal cavities

Respiratory

Epithelium of Superior areas of nasal cavities

Olfactory, with bipolar neurons

Epithelium of Nasopharynx and posterior oropharynx

Respiratory and stratified squamous

Epithelium of Larynx

Respiratory and stratified squamous

Epithelium of Trachea

Respiratory

Glands of Vestibules of nasal cavities

Sebaceous and sweat glands

Vibrissae (stiff hairs) and moisture filter and humidify air

Vestibules of nasal cavities

Musculoskeletal support of Vestibules of nasal cavities

Hyaline Cartilage

Glands of Most areas of nasal cavities

Seromucous glands

Musculoskeletal support of Most areas of nasal cavities

Bone and hyaline cartilage

Rich vasculature and glands warm, humidify, and clean air

Most areas of nasal cavities

Glands of Superior areas of nasal cavities

Serous (Bowman) glands

Musculoskeletal support of Superior areas of nasal cavities

Bone (ethmoid)

Solubilize and detect odorant molecules in air

Superior areas of nasal cavities

Glands of Nasopharynx and posterior oropharynx

Seromucous glands

Musculoskeletal support of Nasopharynx and posterior oropharynx

Bone and skeletal muscle

Conduct air to larynx; pharyngeal and palatine tonsils

Nasopharynx and posterior oropharynx

Glands of Larynx

Mucous glands, smaller seromucous glands

Musculoskeletal support of Larynx

Elastic and hyaline cartilage, ligaments, skeletal muscle

Site for phonation; epiglottis closes while swallowing

Larynx

Glands of Trachea

Mainly mucous glands, some serous or mixed glands

Musculoskeletal support of Trachea

C-shaped rings of hyaline cartilage, with smooth (trachealis) muscle in posterior opening of each

Conduct air to primary bronchi entering lungs; some MALT

Trachea