Trachea
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The trachea, also known as the windpipe, is a cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all land vertebrate anim
Cross-section of the trachea, with pseudostratified ciliated columnar epithelium and goblet cells labelled
Magnified cross-section of the cartilage of the trachea
Trachea
Tracheal system of dissected cockroach. The largest tracheae run across the width of the body of the cockroach and are horizontal in this image. Scale bar, 2 mm.
Pharynx
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The pharynx is the part of the throat behind the mouth and nasal cavity, and above the esophagus and trachea. It is found in vertebrates and invertebrates, though its structure varies across species.
Head and inner neck
Pharynx
Details of torus tubarius
Pharyngitis is the painful swelling of the throat. The oropharynx shown here is very inflamed and red.