Respiratory bronchiole

Infobox Anatomy
Name = PAGENAME
Latin = bronchioli respiratorii
GraySubject = 240
GrayPage = 1098



Caption = Diagram of the alveoli with both cross-section and external view.


Caption2 = Schematic longitudinal section of a primary lobule of the lung (anatomical unit);
r. b respiratory bronchiole;
al. d alveolar duct; at atria;
a. s alveolar sac;
'a' alveolus or air cell;
p. a.: pulmonary artery;
p. v pulmonary vein;
l lymphatic;
l. n lymph node.
Precursor =
System =
Artery =
Vein =
Nerve =
Lymph =
MeshName =
MeshNumber =
DorlandsPre = b_23
DorlandsSuf = 12197629
The respiratory bronchioles are the beginning of the respiratory segment of the airway and are just distal to the terminal bronchioles (which are the last segment of the conducting airway). The epithelium in this segment is simple cuboidal. The respiratory bronchioles are interrupted by alveoli which are thin walled evaginations. Alveolar ducts are distal continuations of the respiratory bronchioles.


=Additional

External links

* [http://www.bio.davidson.edu/people/midorcas/animalphysiology/Human%20Physiology%20Manual/chapter4/exper10/back_chap4_exp10.htm Diagram at davidson.edu]
*
*
* [http://www3.umdnj.edu/histsweb/lab10/lab10lung.html Histology at umdnj.edu]


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • respiratory bronchiole — a short, thinner walled branch of a terminal bronchiole; it is the first segment of the bronchiole that contains alveoli and in which gas exchange occurs. It further subdivides, subsequent branches becoming narrower in diameter and increasing in… …   Medical dictionary

  • Respiratory system — See also: Respiratory tract Respiratory A complete, schematic view of the human respiratory system with their parts and functions. Latin …   Wikipedia

  • Respiratory tract — In humans the respiratory tract is the part of the anatomy that has to do with the process of respiration.The respiratory tract is divided into 3 segments: *Upper respiratory tract: nose and nasal passages, paranasal sinuses, and throat or… …   Wikipedia

  • Respiratory tree — The respiratory tree describes the branching structure of the vertebrate lung. Beginning with the top of the respiratory system, the trachea, the order of branchings is as follows:* trachea ** main bronchus ***lobar bronchus **** segmental… …   Wikipedia

  • Respiratory zone — The respiratory zone is the site of O2 and CO2 exchange with the blood.The respiratory bronchioles and the alveolar ducts are responsible for 10% of the gas exchange. The alveoli are responsible for the other 90%.The respiratory zone represents… …   Wikipedia

  • respiratory disease — ▪ human disease Introduction  any of the diseases and disorders that affect human respiration (respiration, human).  Diseases of the respiratory system may affect any of the structures and organs that have to do with breathing, including the… …   Universalium

  • bronchiole — One of approximately six generations of increasingly finer subdivisions of the bronchi, all less than 1 mm in diameter, and having no cartilage in its wall, but relatively abundant smooth muscle and elastic fibers. SYN: bronchiolus [TA].… …   Medical dictionary

  • bronchiole — n. a subdivision of the bronchial tree that does not contain cartilage or mucous glands in its wall. Bronchioles open from the fifth or sixth generation of bronchi and extend for up to 20 more generations before reaching the terminal bronchioles …   The new mediacal dictionary

  • Bronchiole — Infobox Anatomy Name = Bronchiole Latin = GraySubject = 240 GrayPage = 1098 Caption = Diagram of the alveoli with both cross section and external view. Caption2 = System = Precursor = MeshName = MeshNumber = DorlandsPre = Bronchioles DorlandsSuf …   Wikipedia

  • terminal respiratory unit — the part of the lung distal to a single terminal bronchiole; it is the anatomical and functional unit of the lung and consists of a respiratory bronchiole, two or more alveolar ducts, and alveoli. Called also primary lobule of lung, pulmonary… …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.