The lungs are the primary organs of respiration in humans and many other animals including a few fish and some snails. source
The lungs are the primary organs of respiration in humans and many other animals including a few fish and some snails.
In mammals and most other vertebrates, two lungs are located near the backbone on either side of the heart. source
In mammals and most other vertebrates, two lungs are located near the backbone on either side of the heart.
The lungs function in the respiratory system is to extract oxygen from the atmosphere and transfer it into the bloodstream. source
The lungs function in the respiratory system is to extract oxygen from the atmosphere and transfer it into the bloodstream.
The lungs to release carbon dioxide from the bloodstream into the atmosphere, in a process of gas exchange. source
The lungs to release carbon dioxide from the bloodstream into the atmosphere, in a process of gas exchange.
In early tetrapods, air was driven into the lungs by the pharyngeal muscles via buccal pumping, a mechanism still seen in amphibians. source
In early tetrapods, air was driven into the lungs by the pharyngeal muscles via buccal pumping, a mechanism still seen in amphibians.
The lungs provide airflow that makes vocal sounds including human speech possible. source
The lungs provide airflow that makes vocal sounds including human speech possible.
Humans have two lungs, a right lung and a left lung. source
Humans have two lungs, a right lung and a left lung.
The lungs are situated within the thoracic cavity of the chest. source
The lungs are situated within the thoracic cavity of the chest.
The right lung is bigger than the left, which shares space in the chest with the heart. source
The right lung is bigger than the left, which shares space in the chest with the heart.
The lungs together weigh approximately 1.3 kilograms (2.9 lb), and the right is heavier. source
The lungs together weigh approximately 1.3 kilograms (2.9 lb), and the right is heavier.
The lungs are part of the lower respiratory tract that begins at the trachea . source
The lungs are part of the lower respiratory tract that begins at the trachea .
The lungs contain approximately 2,400 kilometres (1,500 mi) of airways and 300 to 500 million alveoli. source
The lungs contain approximately 2,400 kilometres (1,500 mi) of airways and 300 to 500 million alveoli.
The lungs are enclosed within the pleural sac which allows the inner and outer walls to slide over each other whilst breathing takes place. source
The lungs are enclosed within the pleural sac which allows the inner and outer walls to slide over each other whilst breathing takes place.
This sac encloses each lung and also divides each lung into sections called lobes. source
This sac encloses each lung and also divides each lung into sections called lobes.
The right lung has three lobes and the left has two. source
The right lung has three lobes and the left has two.
The lungs have a unique blood supply, receiving deoxygenated blood sent from the heart for the purposes of receiving oxygen (the pulmonary circulation). source
The lungs have a unique blood supply, receiving deoxygenated blood sent from the heart for the purposes of receiving oxygen (the pulmonary circulation).
The tissue of the lungs can be affected by a number of diseases, including pneumonia and lung cancer. source
The tissue of the lungs can be affected by a number of diseases, including pneumonia and lung cancer.
In embryonic development, the lungs begin to develop as an outpouching of the foregut. source
In embryonic development, the lungs begin to develop as an outpouching of the foregut.
When the lungs are formed the fetus is held in the fluid-filled amniotic sac and so they do not function to breathe. source
When the lungs are formed the fetus is held in the fluid-filled amniotic sac and so they do not function to breathe.
Blood is diverted from the lungs through the ductus arteriosus. source
Blood is diverted from the lungs through the ductus arteriosus.
At birth however, air begins to pass through the lungs, and the diversionary duct closes, so that the lungs can begin to respire. source
At birth however, air begins to pass through the lungs, and the diversionary duct closes, so that the lungs can begin to respire.
The lungs only fully develop in early childhood. source
The lungs only fully develop in early childhood.