What tissues make up the bronchi?

Answer 1

wall consists of collagenous connective tissue with thin interlacing bundles of smooth muscle and elastic fibers

Histologically, the distal bronchioles have connective tissue and smooth muscle in the airway walls but do not have submucosal glands or cartilage. The epithelium of the terminal bronchioles is composed of three types of cells - ciliated cells, nonciliated cells and a few basal cells. The epithelium of the respiratory bronchioles has three cell populations. The first near the terminal bronchioles consists of the nonciliated columnar, ciliated columnar and basal cells. The second consists of nonciliated cuboidal cells. The third is most similar to the alveolar epithelial lining. These are nonciliated cells, cuboidal type II cells, and squamous type I cells.

refer: Gary R. Epler, M.D. (2009), Bronchiolar Airway Disorders and Bronchiolitis Obliterans, dynamics of disease, retrieved 04/05/09 http://www.epler.com/boo5.html

W. J. Krause (2004) ,The Art of Examining and Interpreting Histologic, pg 64

Answer 2

The outer tissue of the bronchi are made up of incomplete circles of cartilage, sandwiched between layers of membrane. The inner membrane is fibrous, and the outer membrane is thin tissue. The next layer of tissue is made up of longitudinal and transverse muscle cells interspersed with mucus-producing gland cells. The innermost layer is composed of mucous membrane covered in fine cilia.

Answer 3

the layers of lungs :)

----------------the tae and ewan

Answer 4

lungs are enveloped by the PLEURA ,which has two layers ,parietal and visceral.

Answer 5

the 18th tissue and the 65909867th tissue