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Lymphatic Vessels - Anatomy & Physiology (view source)
Revision as of 09:14, 27 August 2008
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|backcolour = f5fffa
|backcolour = f5fffa
|linkpage =Lymphatic System - Anatomy & Physiology
|linkpage =Lymphatic System - Anatomy & Physiology
|linktext =Lymphatic System
|linktext =LYMPHATIC SYSTEM
|tablelink = Lymphatic System (Table) - Anatomy & Physiology
|tablelink = Lymphatic System (Table) - Anatomy & Physiology
|maplink = Lymphatic System (Content Map) - Anatomy & Physiology
|maplink = Lymphatic System (Content Map) - Anatomy & Physiology
|sublink1 =Lymphoreticular System - Anatomy & Physiology
|subtext1 =LYMPHORETICULAR SYSTEM
|pagetype =Anatomy
|pagetype =Anatomy
}}
}}
<p>Originating from the cistern chyli it passes through the aortic hiatus, travelling cranially through the mediastinum and along the left side of the trachea until it empties into the cranial vena cava or commonly the left jugular vein.</p>
<p>Originating from the cistern chyli it passes through the aortic hiatus, travelling cranially through the mediastinum and along the left side of the trachea until it empties into the cranial vena cava or commonly the left jugular vein.</p>
<p>The thoracic duct drains lymph from the left side of the thorax as well as from the cistern chyli. The cistern drains the abdomen, hind limbs and the pelvic regions.</p>
<p>The thoracic duct drains lymph from the left side of the thorax as well as from the cistern chyli. The cistern drains the abdomen, hind limbs and the pelvic regions.</p>
It is the main channel for return of lymph to the bloodstream, receiveing lymph from the efferent vessels of the viscera, pelvis and bloodstream.
==Function==
==Function==
<p>Due to their structure lymphatic capillaries are more permeable than vascular capillaries and this mean that they can not only more effectively remove fluid from tissue but also take up large molecules. This allows the lymphatic system to transport large proteins as well as chylomicrons for the transport of fats. The interstitial fluid filtered into the lymphatic vessels is called lymph. As the vessels pass through [[Lymph Nodes - Anatomy & Physiology|lymph nodes]] the lymph is surveyed by immune cells before returning to the blood ensuring that antigens/pathogens from tissues are removed.</p>
<p>Due to their structure lymphatic capillaries are more permeable than vascular capillaries and this mean that they can not only more effectively remove fluid from tissue but also take up large molecules. This allows the lymphatic system to transport large proteins as well as chylomicrons for the transport of fats. The interstitial fluid filtered into the lymphatic vessels is called lymph. As the vessels pass through [[Lymph Nodes - Anatomy & Physiology|lymph nodes]] the lymph is surveyed by immune cells before returning to the blood ensuring that antigens/pathogens from tissues are removed.</p>
==Circulation==
Tissue fluid is collected by the afferent lymphatic vessels which drain into the lymph node where trapping of foreign material occurs to prevent spread around the body.
The filtered lymph leaves the lymph node via the efferent lymphatic vessel.
*The thoracic duct terminates in the left brachiocephalic vein
*The left tracheal duct supplies lymph to the thoracic duct from the lymph nodes draining the left head and neck
*The right tracheal duct receives lymph from the right head and neck and supplies lymph to the right brachicephalic vein
<big><center>[[Lymphatic System - Anatomy & Physiology|'''BACK TO LYMPHATIC SYSTEM - ANATOMY & PHYSIOLOGY''']]</center></big>
<big><center>[[Lymphoreticular System - Anatomy & Physiology|'''BACK TO LYMPHORETICULAR SYSTEM - ANATOMY & PHYSIOLOGY''']]</center></big>