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Korbbogen head. This is a torispherical head also named Semi ellipsoidal head (According to DIN 28013). The radius of the dish is 80% of the diameter of the cylinder ( ). The radius of the knuckle is ( ). Also other sizes are , rest of height ( ) . This shape [6] finds its origin in architecture; see Korbbogen, architectural information.
A hemispherical combustion chamber, displaying the largest single intake and exhaust valves possible for a given engine bore diameter. A hemispherical combustion chamber is a combustion chamber in the cylinder head of an internal combustion engine with a domed "hemispheric" shape. An engine featuring this type of hemispherical chamber is known ...
A pulmonary contusion, also known as lung contusion, is a bruise of the lung, caused by chest trauma. As a result of damage to capillaries, blood and other fluids accumulate in the lung tissue. The excess fluid interferes with gas exchange, potentially leading to inadequate oxygen levels (hypoxia). Unlike pulmonary laceration, another type of ...
Hypoxic pulmonary vasoconstriction (HPV), also known as the Euler-Liljestrand mechanism, is a physiological phenomenon in which small pulmonary arteries constrict in the presence of alveolar hypoxia (low oxygen levels). By redirecting blood flow from poorly-ventilated lung regions to well-ventilated lung regions, HPV is thought to be the ...
Pulmonary hypertension. Pulmonary hypertension (PH or PHTN) is a condition of increased blood pressure in the arteries of the lungs. [7] Symptoms include shortness of breath, fainting, tiredness, chest pain, swelling of the legs, and a fast heartbeat. [7][1] The condition may make it difficult to exercise. [7]
A pulmonary laceration is a chest injury in which lung tissue is torn or cut. [1] An injury that is potentially more serious than pulmonary contusion, pulmonary laceration involves disruption of the architecture of the lung, [2] while pulmonary contusion does not. [3] Pulmonary laceration is commonly caused by penetrating trauma but may also ...
The Hering-Breuer reflex, put simply, is what keeps the lungs from over-inflating with inspired air. The neural circuit that controls the Hering–Breuer inflation reflex involves several regions of the central nervous system, and both sensory and motor components of the vagus nerve. Increased sensory activity of the pulmonary-stretch lung ...
The black areas on either side are the lungs, with around it the chest wall. A CT pulmonary angiogram (CTPA) is a medical diagnostic test that employs computed tomography (CT) angiography to obtain an image of the pulmonary arteries. Its main use is to diagnose pulmonary embolism (PE). [1] It is a preferred choice of imaging in the diagnosis of ...