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|linkpage =Cardiorespiratory System - Anatomy & Physiology
|linktext =Cardiorespiratory System
|maplink = Cardiorespiratory (Content Map) - Anatomy & Physiology
|pagetype =Anatomy
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==Introduction==
The mediastinum divides the thoracic cage into two halves. It extends from the Spine to the Sternum and contains many structures including blood vessels, nerves, oesophagus, trachea and heart.
==References==
*{{citation|initiallast = Sjaastad|initialfirst = O.V|2last = Hove|2first = K|finallast = Sand|finalfirst = O|year = 2004|title = Physiology of Domestic Animals|city = Oslo|pub = Scandinavian Veterinary Press}}