The upper half of the respiratory system consists of the nasal cavity, larynx and pharynx, while the lower half consists of the trachea, bronchi and lungs. The upper part of the system conducts gases, while the lower par... More »

The respiratory system is made up of the lungs, trachea, bronchi and diaphragm. These organs help people to breathe. Humans need to breathe to deliver oxygen to the body and rid the body of carbon dioxide, a waste gas th... More »

The major organs of the respiratory system are the lungs, trachea, bronchi and diaphragm. The respiratory system works together with the cardiovascular system to deliver oxygen to the organs and with the autonomic nervou... More »

The human respiratory system consists of the nasal cavity, pharynx, trachea, various divisions of the bronchi and two lungs. Air flows through the nose or the mouth into the pharynx, through the trachea, down the right a... More »

The anatomy of the upper airway consists of the pharynx and the nasal cavities, although some definitions also include the larynx and trachea. The pharynx is further divided into the nasopharynx, oropharynx, and laryngop... More »

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When a person takes a breath, the air enters through the nostrils and continues its passage through the pharynx, larynx, trachea, bronchi, bronchioles, lungs and alveoli. Gas exchange takes place in the alveoli, where ox... More »

The respiratory system is made up of the lungs, trachea, bronchi and diaphragm. These organs help people to breathe. Humans need to breathe to deliver oxygen to the body and rid the body of carbon dioxide, a waste gas th... More »