When an increase in interstitial fluid in the lung tissue leads to an increased diffusion distance for gases, resulting in hypoxia, the condition is known as:Question 12Answera.bronchitisb.emphysemac.pulmonary edemad.pneumonia

Pulmonary alveolar proteinosis is a disorder that causes fluid to build up in the alveoli.How will this affect the diffusion of gases into and out of the blood?Diffusion will be faster because of the shorter diffusion distance between the air space in the alveoli and the blood.Diffusion will be slower because of the shorter diffusion distance between the air space in the alveoli and the blood.Diffusion will be faster because of the longer diffusion distance between the air space in the alveoli and the blood.Diffusion will be slower because of the longer diffusion distance between the air space in the alveoli and the blood.

ventilation, diffusion, and perfusion.

Diffusion of gases occurs in the alveolar region only and not in the other parts ofrespiratory system. Why?

What is diffusion?The passive movement of particles from a high concentration to a low concentrationThe passive movement of particles from a low concentration to a high concentrationThe active movement of particles using energy from respirationThe passive movement of water though a semi-permeable membrane from an area of high concentration to an area of low concentration2Which of the following factors do not speed up diffusion?Small surface area to volume ratioIncrease in temperatureIncrease in concentration gradientLarge surface area to volume ratio3During ventilation, in which order does air enter the following structures to reach the lungs?Bronchi, bronchiole, trachea, alveoliTrachea, alveoli, bronchi, bronchioleTrachea, bronchi, bronchiole, alveoliBronchi, trachea, bronchiole, alveoli4Which one of the following characteristics would you expect to find in alveoli to make them efficient at gas exchange?Small surface areaRich supply of blood capillariesLong diffusion distanceThick walls5Which two mechanisms are important for maintaining the steep concentration gradients of oxygen and carbon dioxide that are necessary for gas exchange?Respiration and ventilationVentilation and circulationVentilation and excretionRespiration and circulation6During gas exchange:Oxygen moves down a concentration gradient from the air in the alveoli to the bloodOxygen moves down a concentration gradient from the blood to the air in the alveoliOxygen moves up a concentration gradient from the blood to the air in the alveoliOxygen moves up a concentration gradient from the air in the alveoli to the blood

Explain the factors that alter pulmonary (minute) ventilation