
Elastic membrane
A large accumulation of elastic fibers forms an elastic membrane in the connective tissue beneath the epithelium of the trachea. In this section, the elastic fibers are cut in cross section. 400x

Respiratory epithelium
A large accumulation of elastic fibers forms an elastic membrane in the connective tissue beneath the epithelium of the trachea. In this section, the elastic fibers are cut in cross section. 400x

Elastic membrane
A large accumulation of elastic fibers forms an elastic membrane in the connective tissue beneath the epithelium of the trachea. In this section, the elastic fibers are cut in cross section. 400x

Elastic fibers
A large accumulation of elastic fibers forms an elastic membrane in the connective tissue beneath the epithelium of the trachea. In this section, the elastic fibers are cut in cross section. 400x

Collagen fibers
A large accumulation of elastic fibers forms an elastic membrane in the connective tissue beneath the epithelium of the trachea. In this section, the elastic fibers are cut in cross section. 400x

Fibroblasts
A large accumulation of elastic fibers forms an elastic membrane in the connective tissue beneath the epithelium of the trachea. In this section, the elastic fibers are cut in cross section. 400x

Blood vessel
A large accumulation of elastic fibers forms an elastic membrane in the connective tissue beneath the epithelium of the trachea. In this section, the elastic fibers are cut in cross section. 400x