News tagged with inhalation

HHS releases 13th Report on Carcinogens

Four substances have been added in the U.S. Department of Health and Human Services 13th Report on Carcinogens, a science-based document that identifies chemical, biological, and physical agents that are ...

Oct 02, 2014
popularity 5 / 5 (1) | comments 0

Asthma drugs suppress growth

Corticosteroid drugs that are given by inhalers to children with asthma may suppress their growth, evidence suggests. Two new systematic reviews published in The Cochrane Library focus on the effects of inhaled corticosteroid drugs ...

Jul 16, 2014
popularity 4 / 5 (2) | comments 0

Treating lung disease in infants

Steroids used to treat the lungs of preterm infants have come under scrutiny. Now a large clinical trial assesses whether inhaling steroids is safe and useful.

May 15, 2014
popularity not rated yet | comments 0

Inhalation

Inhalation (also known as inspiration) is the movement of air from the external environment, through the air ways, and into the alveoli.

Inhalation begins with the onset of contraction of the diaphragm, which results in expansion of the intrapleural space and an increase in negative pressure according to Boyle's Law. This negative pressure generates airflow because of the pressure difference between the atmosphere and alveolus. Air enters, inflating the lung through either the nose or the mouth into the pharynx (throat) and trachea before entering the alveoli.

Other muscles that can be involved in inhalation include:

This text uses material from Wikipedia licensed under CC BY-SA