A diagram of the human lungs can depict different parts, including the alveoli, bronchi, pleura, diaphragm and bronchioles, notes WebMD.com. Although humans have two lungs, these organs are not identical because the righ... More »

A frog's lungs are involved in many functions, including breathing, vocalizing and hearing. Brown University explains that frogs use their lungs in the same way humans do to take in air. The breathing process is differen... More »

According to The Columbia Encyclopedia, lungs are important because most vertebrate animals use them to breathe. The lungs provide the space for the exchange of gases that occurs alongside the action of breathing; this e... More »

The respiratory system includes several types of tissue, including bronchi and bronchioles, as well as lung interior, pleural membrane and alveoli, according to InnerBody. The epiglottis is a thin piece of tissue coverin... More »

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 »

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 »