A peculiar hollow, blowing, resonant breathing sound that is heard over the lung cavities (abnormal spaces in the lung area or in parts of a lung).

A reference to the process whereby an aquatic animal obtains oxygen from the surrounding water.

1. A form of breathing in which periods of apnea are interrupted by several consecutive deep breaths.

It is said to be a sign of meningitis.

2. Breathing marked by several short breaths followed by long, irregular periods of apnea.

It is seen in patients with increased intracranial pressure.

Named for Camille Biot, French physician, born in 1878.

These two terms are NOT based on the "bio" element; however, they are placed here to clarify any confusion someone might have when seeing the terms in use.

1. The electrical stimulation of the phrenic nerve, and is used to provide respiration or breathing for patients who have been paralyzed by an acute bulbar poliomyelitis (a severe form of viral disease affecting the medulla oblongata, which may result in a dysfunction of the swallowing mechanism, normal breathing, and circulatory distress).
2. An artificial respiration in which the nerves that control breathing are stimulated electrically through correctly placed electrodes.

3. An application of intermittent electrical stimuli to cutaneous electrodes over the phrenic nerves in the neck to rhythmically stimulate respiration or proper breathing.

The technique is used in patients whose respiratory center has been damaged.