The word "pneopneic reflex" is a medical term used to describe the automatic pause in breathing after a deep inhalation. The spelling of this word follows the International Phonetic Alphabet (IPA) guidelines, which represent the sounds of the English language. The initial "pne" sounds like "nee," and the final "ic" sounds like "ik." Therefore, the correct pronunciation of "pneopneic reflex" is /niːoʊˈniːk rɛflɛks/. Understanding the correct spelling of medical terms is essential for effective communication between healthcare professionals and their patients.
The term "pneopneic reflex" refers to a neurological reflex that is associated with the regulation and control of breathing. It is an automatic response that occurs in the respiratory system when there is variation or changes in the rate and depth of breathing.
The word "pneopneic" is derived from two Greek roots: "pneo," meaning "to breathe," and "pneuma," meaning "air" or "breath." The reflex is characterized by a sudden and involuntary adjustment of the breathing pattern to ensure optimal gas exchange in the lungs, particularly with regards to the oxygen and carbon dioxide levels.
The pneopneic reflex is believed to be coordinated by specialized neurons in the brainstem, specifically in the medulla oblongata and pons. These neurons receive input from various sensory receptors throughout the body, such as the chemoreceptors that detect changes in oxygen and carbon dioxide levels in the blood. In response to these inputs, the reflex triggers adjustments in the activity of the muscles involved in breathing, including the diaphragm and intercostal muscles.
This reflex is crucial for maintaining homeostasis and sustaining appropriate gas exchange in the body. When there are abnormalities or disturbances in breathing, such as during conditions like asthma, hyperventilation, or hypoventilation, the pneopneic reflex helps to restore normal respiration patterns and maintain proper oxygenation of tissues. It contributes to the overall autonomic control of breathing, which is key for our survival and well-being.
A modification of the respiratory rhythm caused by the inhalation of an irritating vapor.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.