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img020 - Wyatt Pmizvmmsandw‘ Mun:3 sun'R-numory system...

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Unformatted text preview: Wyatt: Pmizvmmsandw‘ ( Mun-:3 sun 'R-numory system atom-m cementum Put 8: Volumes and air In * ANS comm - Sympathetic mm bmoelvodllation: N , u paruympaMe causes bronchocmtflchon. *AIScomnctou-lusmoothmmcleinllnalmuy o mummmm. one... *Asn-rutsumm,moamwdoemm. Mthfln-me. *ln ham-y Iungo. hallway: mum. resistance, so “Meatylmmdmothlunga. [QT-:11 8 parasympathetic causes contraction (bronchoconstriction). P ham *Cammm-mmmodm. *thmmmngmabrdmldumhlm alvflowtobloodllow *Wlwm‘ammmuw mull, dluan- Menu” airway munc- _... _. N! Fen-um 1 END """"°°""“"' "m“ “m“ “W" Go to the next screen: Here’s a summary of the factors affecting lung compliance that, in turn is one important factor that: affects lung volume. Pressure gradient is the other factor affecting lung volume. Elastic recoil of the lungs and chest wall, and the contraction of breathing muscle create the pressure gradients that drive air into and out of the lungs. TP = Transpulmonary pressure or the pressure difference between the inside and outside of the lung Click the Home Menu Button yeLOCJJ (one) Con/\pUqMQ C3 {rdigcch‘x/‘Q m? rest-victim Click the Airway resistance button: Airway resistmce refers to the resistance of the entire system of airways in the respiratory tract; it is analogous to total peripheral resistance in cardiovascular physiology. In health lungs, resistance to air flow into and out of the lungs is low because of the radii of the tubes in the conducting zone are relatively large. (555' 4 - 1’ Les-l5 [é r {DEE/v“ ”Rb Click the See Airway Constriction Button: Airwg resistance is determined primarily by the resistance of individual airways and is affected most strongly by chan es in airw radius. Smooth muscle of the bronchioles is influenced by the autonomic nervous system: skim causes relggion of smooth muscles (bronchodilation); (-Dqu—Ku .\ -— E02 'lcbu) 6 ens“ (‘1 Ch‘: (3 ,\ (waNMfocWUl/h'Q) Effimw mm “mm mm“ Go to the next screen: Histamine and other local ”U“ chemical factors also affect the radius of bronchioles (e.g. “W ”“5"“ carbon dioxide). Pathological states also affect airway D * _ ’ resistance — asthma, COPD ~mm~mm Max-«K <uu ehatc .skock) W133 , wt or) (mom «came " \rxtB'VOKB/itm .7 ecdrMelL-chd (mam, mafia—‘3“;I «Mm/Uu 5"an ' 3) Cg? O R , - M COX .5” V64 Click the Home Menu Button Dana A AFR ...
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