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Balloon pulmonary angioplasty (BPA) is an emerging minimally invasive procedure to treat chronic thromboembolic pulmonary hypertension (CTEPH) in people who are not suitable for pulmonary thromboendarterectomy (PTE) or still have residual pulmonary hypertension and areas of narrowing in the pulmonary arterial tree following previous PTE. [1] [2]
Blowing up a hot-water bottle is usually performed to impress a crowd. It requires significant lung capacity as well as chest and abdominal strength. It is regarded as potentially hazardous because of the risk of harm to the eyes and the possibility of the contained air rushing back into the lungs and causing damage or, reportedly, death. [1]
Static lung compliance is the change in volume for any given applied pressure. [1] Dynamic lung compliance is the compliance of the lung at any given time during actual movement of air. Low compliance indicates a stiff lung (one with high elastic recoil) and can be thought of as a thick balloon – this is the case often seen in fibrosis.
Paul Hashagan also notes that, in 1863, A. Lacour developed and patented the "improved breathing apparatus". This system provided air to the wearer from two canvas and rubber balloon-like bags which were carried on the wearer's back. A pair of bellows would then allow the wearer to pump air to a mouthpiece.
The Union Army Balloon Corps was a branch of the Union Army during the American Civil War, established by presidential appointee Thaddeus S. C. Lowe.It was organized as a civilian operation, which employed a group of prominent American aeronauts and seven specially built, gas-filled balloons to perform aerial reconnaissance on the Confederate States Army.
Fig. 1. Two balloons are connected via a hollow tube. When the valve is opened, the smaller balloon shrinks and the larger balloon expands. The two-balloon experiment is an experiment involving interconnected balloons. It is used in physics classes as a demonstration of elasticity.
That is, in whispered pectoriloquy, the repeated words are whispered at low volume, and in bronchophony, they are spoken at normal volume. The clinical observation being determined is whether or not an increase in volume is heard at the clinician's stethoscope over the lung field being auscultated which would indicate lung consolidation.
A soda geyser is a physical reaction between a carbonated beverage, usually Diet Coke, and Mentos mints that causes the beverage to be expelled from its container. The candies catalyze the release of gas from the beverage, which creates an eruption that pushes most of the liquid up and out of the bottle.