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To reverse the direction of the armature rotation of a DC motor, the current direction in both the field and the armature must be reversed.
Blood Vessel Walls
The structured layers composing the sides of arteries, veins, and capillaries, responsible for maintaining blood pressure and controlling blood flow.
Tunica Media
The middle layer of the wall of a blood vessel or hollow organ, consisting primarily of smooth muscle cells and elastic fibers.
Pulmonary Circulation
The passage of blood from the heart to the lungs and back to the heart, where it is oxygenated and rid of carbon dioxide.
Pulmonary Arteries
The arteries that carry deoxygenated blood from the heart to the lungs, where it is oxygenated before being returned to the heart.
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