What does "Mainstem" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
In the field of medicine, the term "mainstem" is often used to refer to the primary or central part of a structure in the body. For example, the mainstem bronchus is the main airway that leads into the lungs. Similarly, the mainstem of a blood vessel is the primary pathway through which blood flows. This term helps doctors and medical professionals describe and locate specific areas within the body's complex systems.
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