Search results
Results from the WOW.Com Content Network
Inhalation of air, as part of the cycle of breathing, is a vital process for all human life.The process is autonomic (though there are exceptions in some disease states) and does not need conscious control or effort.
The dorsal respiratory group (DRG) has the most fundamental role in the control of respiration, initiating inspiration (inhalation). The DRG is a collection of neurons forming an elongated mass that extends most of the length of the dorsal medulla. They are near to the central canal of the spinal cord, and just behind the ventral group.
Hoover's sign in pulmonology is one of two signs named for Charles Franklin Hoover. [1]It refers to inward movement of the lower rib cage during inspiration, [2] - instead of outward as is normal - implying a flat, but functioning, diaphragm, often associated with COPD. [3]
The pathway descends along the spinal ventralateral column. The descending tract for autonomic inspiration is located laterally, and the tract for autonomic expiration is located ventrally." [13] Autonomic Inspiration is controlled by the pontine respiratory center and both medullary respiratory centers. In our case, the VRG controls autonomic ...
The Hering–Breuer inflation reflex, named for Josef Breuer and Ewald Hering, [1] [2] [3] is a reflex triggered to prevent the over-inflation of the lung. Pulmonary stretch receptors present on the wall of bronchi and bronchioles of the airways respond to excessive stretching of the lung during large inspirations.
The relationship between the intra-pulmonary pressure and intra-pleural pressure is that the pressure becomes more negative during inspiration and allows air to get sucked in (Boyle's law) P vs V relationship and during expiration, the pressure becomes less negative (Note: still less than atmospheric pressure, also take note of the partial ...
In physiology, respiration is the transport of oxygen from the outside environment to the cells within tissues, and the removal of carbon dioxide in the opposite direction to the environment by a respiratory system.
Real-time magnetic resonance imaging of the human thorax during breathing X-ray video of a female American alligator while breathing. Breathing (spiration [1] or ventilation) is the rhythmical process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.