what happens to the organ if there is a deficiency in vitamin a?
This can disrupt the normal physiology of the lung and predispose to respiratory diseases.
Lung
This can disrupt the normal physiology of the lung and predispose to respiratory diseases. 
where are the human lungs located in the body Near the backbone on either side of the heart. what distinguishes the right lung from the left lung in humans? The right lung is bigger than the left, which shares space in the chest with the heart. name some tissues which make up that organ. UNANSWERABLE what is the function of this respiratory organ? The major function of the lungs is gas exchange between the lungs and the blood. The alveolar and pulmonary capillary gases equilibrate across the thin blood–air barrier. from where does this organ get its blood supply? The lungs have a dual blood supply provided by a bronchial and a pulmonary circulation. The bronchial circulation supplies oxygenated blood to the airways of the lungs, through the bronchial arteries that leave the aorta.
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Lung [SEP] Vitamin A deficiency
The developing lung is particularly vulnerable to changes in the levels of vitamin A. Vitamin A deficiency has been linked to changes in the epithelial lining of the lung and in the lung parenchyma. This can disrupt the normal physiology of the lung and predispose to respiratory diseases. Severe nutritional deficiency in vitamin A results in a reduction in the formation of the alveolar walls (septa) and to notable changes in the respiratory epithelium; alterations are noted in the extracellular matrix and in the protein content of the basement membrane. The extracellular matrix maintains lung elasticity; the basement membrane is associated with alveolar epithelium and is important in the blood-air barrier.