Pulmonary surfactant: Select one: O a. protects the surface of the lungs O b. eliminates small particles and dust O c. is made by bronchioles O d. prevents the alveoli from collapsing O e. can change colour to green or yellow when infected

Q: When intrapleural pressure is at its most negative... A. Alveolar pressure is also negative B.…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is A Explanation : Intrapleural Pressure Is…

Q: The major nonelastic source of resistance (opposition ) to air flow in the respiratory passageways…

A: Respiration is the exchange of gas between the lungs and atmosphere through the process of…

Q: Respiration includes. OA. breathing OB. inhalation OC. gas exchange OD. cellular respiration OE. all…

A: Introduction  Metabolism refers to the chemical reactions that occur within the cells of the body to…

Q: Which statement regarding the figure is correct? Atmospheric pressure (Patm) = 760 mmHg -F Thoracic…

A: Lungs are regarded as the primary organ of the respiratory system. These are air-filled bags that…

Q: Label the attached diagram of the upper respiratory system

A: The upper respiratory tract consists of the nose and nasal cavity, pharynx, and larynx. These…

Q: explain how changes in the alveolar pressure and chest volume affect the process of exhalation…

A: Exhalation (or expiration) is the movement of air from the lungs out of the airways, to the external…

Q: The source of pulmonary surfactant is:- a. the visceral pleura. b. bronchial glands. c. alveolar…

A: Pulmonary surfactant is the blend of lipids and proteins, that are secreted via epithelial type II…

Q: The exchange of gases that occurs between the alveolar sac and the pulmonary capillary

A:

Q: The amount of air moved in and out of the lungs with each normal resting breath is the (a) vital…

A: Lungs are the spongy air-filled organs of the thoracic cavity that function as the primary gaseous…

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: During exhalatiOn O air moves out of the lungs because there is a higher pressure within the lungs…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: What happens to alveolar pressure when ventilätion drops? Multiple Choice Increases

A: The act of inhaling and exhaling air in order to exchange oxygen for carbon dioxide. In anaerobic…

Q: Arrange the following in order from highest to lowest partial pressure of oxygen gas (Po2) 1. Po2 of…

A: Blood is a liquid substance which flows in the blood vessels and carry nutrients and oxygen to the…

Q: n exhalation, which pressure should be HIGHER? a.) pressure in the lungs b.) atmospheric pressure…

A: Exhalation is the process, during which air from the lungs is released out

Q: Describe how Boyle's law results in inspiration and expiration. Your response must include the…

A: BOYLE'S LAW :- According to this law the volume and pressure are constant in the case of an ideal…

Q: What is the net movement of carbon dioxide gas, given the following: Partial pressure of carbon…

A: Partial pressure  In a mixture of different gases every gas exert some pressure on the wall of the…

Q: The pressure inside the alveoli is less than the atmosphenic pressure

A: The air around you has weight, and it presses against everything it touches. That pressure is called…

Q: 45. The partial pressure of 0, (p0,) is in the air-sacs (alveoli) of our lungs and in the living…

A: The partial pressure of oxygen is a measurement of oxygen pressure in arterial blood.  It reflects…

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: Breathing process is controlled  by  1)Dalton's law 2)Henry's law 3)Diffusions law 4)Boyl's law

A: Answer-4). Boyle's law

Q: The air-transmitting passages of the nose, nasopharynx, larynx, trachea, bronchi, and bronchioles…

A: The respiratory system of the body is responsible for the most vital function of the body, i.e.…

Q: Which of the following would increase the surface tension in the lungs? a. Increased intrapleural…

A: A decreased production of surfactant would increase the surface tension in the lungs.

Q: The forces for resting expiration come from the elastic recoil of tissues and from surface tension.…

A: KEY WORDS :-  Inspiration - It is the air intake by normal person. Expiration - It is the normal air…

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: To initiate inhalation, the diaphragm contracts, making the pressure inside the lungs __________.…

A: Respiration is the process of breathing in and out of air. Breathing in is known as inhalation…

Q: During expiration, the intra-alveolar pressure isa. lower than the pleural pressure.b. greater than…

A: Intra-alveolar pressure: Intra-alveolar pressure is the pressure that is occupied inside the alveoli…

Q: The respiratory rate times the tidal volume corrected for dead space is the total lung capacity…

A: Ventilation refers to the respiratory process in which the air moves between the environment and the…

Q: describe how the primary mechamisms of ventilation are applied to the human airways and includes the…

A: In respiratory physiology, the ventilation rate is the rate at which gas enters or leaves the lung.…

Q: The purpose of pulmonary ventilation is to: Select one: a. Create pressure gradients between…

A: Pulmonary ventilation is a term that commonly refers to breathing. It involves the entry of air into…

Q: Which of the following occurs for expiration to occur? a. the thoracic volume decreases b. the…

A: Respiration is the process which involves the movement of oxygen from external environment towards…

Q: During exhalation, the pressures within the pleural space (intrapleural pressure) and the lung…

A: More Negative,Postive

Q: The body changes alveolar ventilation rates to maintain proper alveolar gas levels. Which of the…

A: Alveolar Ventilation is defined as the exchange of gases occurring between the alveoli and external…

Q: What is different about the gases you inhale and exhale? Be specific.

A: Inhalation is the process, by which an individual takes in the atmospheric air in the lungs.…

Q: Which of the following is TRUE of airway resistance in the respiratory sys Oa) Resistance increases…

A: Airway resistance is determined by three things- the diameter of the airways, the velocity of air…

Q: which of the following DOES NOT influence pulmonary ventilation? airway resistance a. Ob lung…

A: Respiration is the process in which complex organic molecules are broken into simple organic…

Q: Gas moves from an area of ________ partial pressureto an area of ________ partial pressure.a. low;…

A: If we multiply the total pressure of a particular gas with the mole fraction then resultant pressure…

Q: Explain working of lungs. Also draw its diagram and label it.

A: The human respiratory system comprises of: Nostrils: holes of the nose that open into nasal…

Q: A. lumen of air sacs 2. B. pulmonary venule C. pulmonary arteriole 4. D. alveoli 5. E. terminal…

A: Given diagram is of alveoli.Alveoli are the site of gaseous exchange. They are present at the end of…

Q: The force causing air to flow into the lungs during ventilation is: Decreased lung pressure…

A: Air flows inside and outside the lungs die to the pressure difference in atmosphere and inside…