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Lungs Notes: Definitions & Explanations PDF | Download eBooks

Study Lungs lecture notes PDF with biology definitions and explanation to study “What are Lungs?”. Study lungs explanation with biology terms to review biology course for online degree programs.

Lungs Definition:

  • Lungs are the primary organs of the respiratory system in humans and many other animals including a few fish and some snails.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Lungs Notes:

In mammals and most of the vertebrates, two lungs are located near the backbone on either side of the heart. Their function in the respiratory system is to extract oxygen from the atmosphere and transfer it into the bloodstream, and to release carbon dioxide from the bloodstream into the atmosphere, in a process of gas exchange. Respiration is driven by different muscular systems in different species. It is main muscle of respiration that drives breathing is the diaphragm. The lungs also provide airflow that makes vocal sounds including human speech possible.

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