Overview:

The lungs are the primary organs of the respiratory system. Lungs (respiratory system) extract oxygen from the atmosphere and transfer it into the blood & vice versa lungs play a big role in the maintenance and smooth functioning of other organs as well. Lungs have multiple sides:

Front Side – Chest Facing
Back Side – Spine Facing
Right Side – Right Rib Facing
Left Side – Left Rib Facing
Lower Base – Pelvis & Diaphragm Facing
Upper Base – Inner Throat Facing
Inner Core – The Chambers
The Alveoli
The Branches And Everything Else In Between (See Diagram below).

Reference image showings all parts of the Lungs:
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