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Lungs - Anatomy & Physiology (view source)
Revision as of 13:59, 12 August 2008
, 13:59, 12 August 2008no edit summary
*The left and right lungs lie within their pleural sac and are only attached by their roots, to the [[Mediastinum - Anatomy & Physiology|mediastinum]], so they are
*The left and right lungs lie within their pleural sac and are only attached by their roots, to the [[Mediastinum - Anatomy & Physiology|mediastinum]], so they are
*The right lung is always larger than the left, due to the positioning of the heart. The apex of the lungs is the cranial point.
*The right lung is always larger than the left, due to the positioning of the heart. The apex of the lungs is the cranial point.
*
*In most species the lungs are divided into lobes by the bronchial tree:
**Left Lung = Cranial and Caudal lobes.
**Right Lung = Cranial, Caudal, Middle and Accessory lobes. The cranial lobe is further divided by an external fissure.
*The bulk of the lung consists of bronchi, blood vessels and connective tissue. The terminal bronchioles have alveoli scattered along their length, and are continued by alveolar ducts, alveolar sacs and finally alveoli.
[[Image:Routeofairthroughrespiratorysystem.jpg|right|thumb|250px|'''Schematic Diagram showing the route air takes through the respiratory system''']]
==Function==
==Function==
*
*Gaseous Exchange
==Vasculature==
==Vasculature==
==Species Differences==
==Species Differences==
*
* The right lung of the horse lacks a Middle Lobe.
*The fissures between lobes are deeper in the dog and cat lung compared to other species.
==Links==
==Links==