Which of the following prevents the alveoli fromcollapsing?a. residual volumeb. tidal volumec. expiratory reserve volumed. inspiratory reserve volume

Q: Two opposing mechanisms determine alveolar expansion:_________ leads to alveolar expansion,…

A: The objective of the question is to identify the two opposing mechanisms that determine alveolar…

Q: Which of the following best describes the gas exchange that occurs in the lungs?    A. carbon…

A: Ans- c.  carbon dioxide diffuses from the capillaries into the alveoli

Q: If barometric pressure = 760 mmHg, intraplumonary/alveolar pressure = 760 and Intraplueral pressure…

A: The process of breathing is also known as pulmonary ventilation. It is the process by which air…

Q: Predict the direction of diffusion of gases between alveoli and alveolar capillaries.

A: The respiratory system is a set of organs that permits an individual to exchange and breathe carbon…

Q: Given these lung volumes:(1) tidal volume = 500 mL(2) residual volume = 1000 mL(3) inspiratory…

A: The function of the respiratory system is to breathe in oxygen (required for the breakdown of food)…

Q: Ventilation in the capillaries is matched to perfusion. This means that  a. blood pressure from…

A: Introduction: Breathing is the process of moving air out and into the lungs in order to promote gas…

Q: when alveolar pressure is equal to atmospheric pressure, air flows onto the lungs  a. true b.…

A: Inspiration and expiration are the two processes of respiration. Inspiration is the process by which…

Q: Increasing the alveolar ventilation rate will: Select one: O a. increase the partial pressure of…

A: Lungs are essential parts of the respiratory system. When we inhale, air enters the lungs, and…

Q: If alveolar ventilation is 4200 mL/min, respiratory frequency is 12 breaths per minute, and tidal…

A: anatomic dead space is the space within the airways that do not allow gas exchange with the…

Q: The total lung capacity is calculated using which of the following formulas? a. residual volume +…

A: Respiration is a biochemical process of oxidation of organic compounds in an orderly manner for the…

Q: At the end of a normal expiration , pleural and alveolar pressures are-5 and 0 cm H2O ,…

A: Expiration and inspiration are two phases of the respiratory cycle that occur during breathing.…

Q: Given an alveolar pressure of 760 mm, an intrapieural pressure of 755 Hg and a tidal volume of 450…

A: lung compliance is a measure of the lung's ability to stretch and expand. It is given by  change in…

Q: Gas exchange that occurs at the level of the tissues iscalled ________.a. external respirationb.…

A: Lungs perform important role in gas exchange between the external environment and the internal…

Q: when carbon dioxide travelling in the plasma reaches the alveolus and is exhaled, then what happens…

A: Introductio:- the respiratory system are to provide adequate oxygen supply (O2) to meet the needs of…

Q: Which of the following forced expiratory measurements reflects the status of medium-sized to…

A: Introduction: The volume of the air which can be expelled out by the person at the time of forceful…

Q: The maximum amount of air that can be expired after a maximum inspiration is a. the tidal volume. b.…

A: The breathing process consists of two-stage known as inspiration and expiration. It helps to…

Q: airway resistance

A: Airway Resistance: It is defined as the measurement of impedance(amount of resistance) to the…

Q: Define the following: 1. tidal volume 2. inspiratory reserve volume 3. expiratory reserve volume 4.…

A: Respiratory volumes are another name for lung volumes. During the respiratory cycle, it refers to…

Q: Alveolar volume is 300mL, deadspace volume is 100 mL, minute ventilation is 4,000mL/min. Calculate…

A: The respiratory system is defined as the biological system where it includes network of organs and…

Q: The horizontal fissure separates theA. middle and upper lobes of the right lung.B. upper and lower…

A: There are two lungs in human body, right lung and left lung.

Q: The Law of LaPlace predicts that alveoli at constant wall tension are unstable because a. Small…

A: Surface tension – it is defined as the cumulative effect of the forces that are generated by the…

Q: During ventilation when the diaphragm relaxes: O the volume of the alveoli decreases the pressure in…

A: Option:D  All the above

Q: Vital Capacity is the sum of what three lung volumes? a. intake, total capacity, outtake b.…

A: Breathing (or ventilation) is the process of moving air into and from the lungs to facilitate gas…

Q: The change in lung volume as a function of a change in pressure gives a measure of the lung. OA.…

A: Lung volume refers to the amount of air that can be inspired or expired by the lungs. It is a…

Q: When a patient has chronic bronchitis, what happens to the alveolar capillary junction?

A: Step 1 Chronic bronchitis, a type of chronic obstructive pulmonary disease or COPD, which is a group…

Q: The pressure difference between the intra-alveolar andintrapleural pressures is called ________.a.…

A: Among the given options, option (d) is most appropriate. This pressure is generally observed in the…

Q: Anatomical dead space includes air in the: A Conducting zone B Respiratory zone C Pleural sac D Both…

A: The respiratory system is a biological system consisting of specific organs and structures used for…

Q: Which of the following would be most affected by a decrease in the affinity of hemoglobin for…

A: Oxygen mainly binds to the haemoglobin. Hemoglobin molecule is able to bind to 4 oxygen molecules.…

Q: Which of the following forced expiratory measurements is a good index of the integrity of large…

A: Lung capacity is also known as TLC (total lung capacity). It is the volume of inhaled air inside the…

Q: An emergency department nurse is using a manual resuscita-tion bag (Ambu bag) to assist ventilation…

A: Lung cancer It is a progressive disorder of lung characterized by uncontrolled multiplication of…

Q: Arrange the following events in the correct order as they occur during inspiration: 1. Air flows…

A: Respiratory system is a body system which is involved in entry of oxygen inside the body and carbon…

Q: Due to polio, a patient suffers total paralysis of his muscles. For this patient, which of the…

A: The correct answer is: d. none of the aboveIn the case of polio causing total paralysis of muscles,…

Q: If a patient is receiving an FiO2 of 0.60 on a day when the barometric pressure is 725 mm Hg, and if…

A: The direct calculation of the partial pressure of oxygen (PaO2) within the alveoli is impossible.…

Q: What can impair gas exchange in the lungs?    Select 2 correct answer(s)     Reduced alveolar…

A: Organs involved in breathing, such as the lungs, airways, and blood vessels, make up the respiratory…

Q: The rate of diffusion of a gas across the respiratory membraneincreases as thea. respiratory…

A: The lungs contain millions of balloon shaped structures called alveoli that serve as the site of…

Q: If the alveolar PO2 is 100 mm Hg, the blood leaving the pulmonary capillaries in a normal person…

A: The process of intake of oxygen and release of carbon dioxide is called breathing. The respiratory…

Q: PO2 in the alveoli is about 56 mm Hg lower than in the inspired air. Explain this difference.

A: All living organisms can be regarded as working machines, which require continuous supply of energy.…