The Euler-Liljestrand mechanism regulates the perfusion of nonventilated alveoli: if a lung section is perfused but not ventilated, there will be a drop in the oxygen concentration in the blood, resulting in hypoxic vasoconstriction. The ventilation-perfusion ratio is higher in the apex of the lung than at its base. Perfusion of the pulmonary capillaries is closely regulated to match ventilation in order to maximize gas exchange. The physiologic dead space is the volume of inspired air that does not participate in gas exchange. Ventilation is the movement of air through the respiratory tract into (inspiration) and out of (expiration) the respiratory zone ( lungs). Send us feedback about these examples.The main function of the respiratory system is gas exchange (O 2 and CO 2). These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dead space.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Elise Cutts, Scientific American, 18 Jan.

2010 Many modern xylems have intricate cross sections that look like gappy rings, crosses, diamonds or hearts, with dead space called pith separating bundles of xylem tissue. 2023 They were drawn afresh as the relevant molecules drifted back into the dead space and interacted with each other once again. 2023 While iPhone's display dead space is due to it housing a bunch of FaceID sensors, there's no new hardware here (that will take a bit longer to copy), just a normal front-facing camera that turns into a giant pill. Ron Amadeo, Ars Technica, Your accuracy has to be high because in a reverberant space, the room will cover up a certain amount of sins, but in a dead space that's just not the case. Alyssa Gautieri, Good Housekeeping, 2 June 2023 Working around all that dead space is going to make for some interesting software design decisions. Medea Giordano, WIRED, 19 July 2023 But, your basement space offers a ton of possibilities transform dead space into a WFH office, game room, home fitness center or any type of livable room that adds value to your home.

Marni Elyse Katz,, 19 July 2023 The Dynamic Island, which replaces the infamous Face ID notch, is a smart and fun way to make use of dead space. Recent Examples on the Web Base cabinets and open shelves for storage and display wrap an awkward wall, taking advantage of what could have easily been dead space.

Dead space ventilation definition