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The Respiratory System
The respiratory system allows gas exchange between air and blood, enables speech, provides the first line of defense against infection, and helps regulate the pH of blood.
Components of the Respiratory System
The respiratory tract consists of the nose, nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, and alveoli. The nose and pharynx make up the upper respiratory system, and the larynx, trachea, bronchi, and lungs comprise the lower respiratory system.
How Does the Respiratory System Work?
The respiratory tract can be divided into a conducting portion that conducts air into the lungs, and a respiratory portion where gas exchange occurs. As air travels through the conducting portion—the nose, pharynx, larynx, trachea, bronchi, and bronchioles—air is filtered, warmed, and humidified.
The respiratory portion is composed of the smallest bronchioles and alveoli. It is in the alveoli that gas exchange takes place. There are approximately 150 million alveoli in each lung. The respiratory membrane of the alveoli is very thin and covers a large surface area – about the size of a tennis court. This large thin membrane allows oxygen and carbon dioxide to diffuse rapidly and efficiently.
ARALAST NP [Alpha1-Proteinase Inhibitor (Human)]
ARALAST NP is indicated for chronic augmentation therapy in patients having congenital deficiency of A1-PI with clinically evident emphysema. ARALAST NP is not indicated as therapy for lung disease patients in whom congenital A1-PI deficiency has not been established.
Please review the Important Risk Information and the Full Prescribing Information
Please review the Important Risk Information and the Full Prescribing Information
