Terminal bronchiole

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 of Terminal bronchiole

Picture 1 - Terminal bronchiole

Image of Terminal bronchiole

Picture 2 - Terminal bronchiole Image

References:

http://en.wikipedia.org/wiki/Terminal_bronchiole

http://medical-dictionary.thefreedictionary.com/terminal+bronchiole

http://medcell.med.yale.edu/histology/respiratory/terminal_bronchiole_cross_section.php

http://www.britannica.com/EBchecked/topic/587966/terminal-bronchiole

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