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In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.
Hildegard E. Peplau (September 1, 1909 – March 17, 1999) [1] was an American nurse and the first published nursing theorist since Florence Nightingale.She created the middle-range nursing theory of interpersonal relations, which helped to revolutionize the scholarly work of nurses.