Pulmonary breathing corresponds to the process in which gas exchange takes place in the lungs.
Animals that exhibit lung respiration are: some molluscs, most adult amphibians, reptiles, birds and mammals.
The human being performs the lung breathing and the cellular respiration.
Lung breathing is responsible for gas exchange between the body and the environment.
Gas exchanges, also called bruise, consist of the entry of oxygen and the exit of carbon dioxide from the body.
Inhaling and exhaling
Pulmonary breathing is due to movements of the diaphragm.
O diaphragm it is a muscle that changes the volume of the rib cage as it moves.
During inspiration, air intake, the diaphragm contracts and increases the volume of the rib cage
During exhalation, out of breath, the diaphragm relaxes and decreases the volume of the rib cage.
the path taken by the air
When entering through the nasal cavities, the air travels through the pharynx, larynx, trachea, bronchi, bronchioles until reaching the pulmonary alveoli, in the lungs.
The nasal cavities are lined with hairs that can trap dust and microorganisms.
In the nasal cavities, the air is filtered, humidified and heated. In this way, it enters the body at a suitable temperature and conditions.
Upon reaching the pulmonary alveoli, gas exchange occurs.
O oxygen passes from the alveoli to the blood that circulates in the blood capillaries and carbon dioxide passes from the blood to the alveoli.
The path taken by the air to reach the bronchioles
Learn more the Respiratory system.
lung breathing fish
Some bony fish have, in addition to the gill breathing, the pulmonary.
These fish are called lungs or dipnoics.
They have a highly vascularized structure linked to the pharynx that functions like a primitive lung.
The Pyramid (Lepidosiren paradox) is the only lung fish that exists in Brazil.
Piramboia
Check issues with commented resolution inexercises on the respiratory system.
