Terminal bronchiole Definition
It is the terminal section of the nonrespiratory conducting airway. This bronchiole gets subdivided into respiratory bronchioles. The Terminal bronchioles are referred to as the last of the purely conductive airway generations in the human lungs.
Terminal bronchiole Location
It is located at the terminus of the conducting zone. It has a diameter that approximately ranges between 0.5 to 1 mm.
Terminal bronchiole Anatomy
This bronchiole gets subdivided into respiratory bronchioles which comprise of only a few alveoli. Simple cuboidal epithelium, comprising of Clara cells, line the Terminal bronchioles. The walls of the Terminal bronchioles contain only a small number of ciliated cuboidal cells, connective tissues and a limited number of smooth muscle cells.
Terminal bronchiole Function
It supplies oxygen to each pulmonary acini in the body. The main function of these tubular structures is conduction of gas and they are too thick to allow exchange of air.
Terminal bronchiole Pictures
Check out these useful images to know how these bronchioles look like.
Picture 1 - Terminal bronchiole
Picture 2 - Terminal bronchiole Image