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Avian Respiration - Anatomy & Physiology (view source)
Revision as of 13:05, 9 September 2008
, 13:05, 9 September 2008no edit summary
*Avian Gas exchange takes place not in alveoli, as in mammals, but within '''Air Capillaries''' which are extensions of the parabronchial lumen. They are an interconnecting network of loops, and closely intertwine with Blood Capillaries.
*Avian Gas exchange takes place not in alveoli, as in mammals, but within '''Air Capillaries''' which are extensions of the parabronchial lumen. They are an interconnecting network of loops, and closely intertwine with Blood Capillaries.
*The Air Capillaries and Blood Capillaries are arranged so that flow is ''crosscurrent''. This makes the [[Gas Exchange - Anatomy & Physiology|gaseous exchange]] which occurs from one to the other extremely efficient.
*The Air Capillaries and Blood Capillaries are arranged so that flow is ''crosscurrent''. This makes the [[Gas Exchange - Anatomy & Physiology|gaseous exchange]] which occurs from one to the other extremely efficient.
==References==
==References==