in the respiratory tract, does the trachea have connective tissue?

Yes, the trachea does have connective tissue. The trachea, also known as the windpipe, is a tube that connects the pharynx and larynx to the lungs, allowing the passage of air. It is composed of approximately 20 rings of tough cartilage, a type of connective tissue. The back part of each ring is made of muscle and connective tissue. Moist, smooth tissue called mucosa lines the inside of the trachea. These rings of cartilage provide support and keep the trachea open. The trachea also contains other types of connective tissue, including elastic fibers, which allow it to stretch and contract during breathing.