The heart then pumps the oxygenated blood out to the body via the aorta (the great artery arising from the left ventricle of the heart). The bronchial arteries are blood vessels that branch off from the aorta to supply blood and nutrition for the lung itself and the bronchial tubes.
Some people experience weakness in a certain area of their bodies, such as the arms or legs. Others may experience full body weakness, which is often the result of a bacterial or viral infection such as influenza or hepatitis.
Anemia occurs when the amount of hemoglobin in a personâs blood is too low. This means there is not enough delivery of oxygen to the body. This can cause paleness, tiredness or fatigue, and weakness. Anemia can last a short time or a long time. In mild cases, treatment is a simple change in diet.