During speech the circumference of the chest wall increases and decreases as it moves air in and out of the lungs. Which statement best describes the air pressure and direction of air flow as the chest wall circumference increases?

Q: Pulmonary ventilation whereby air is moved in and out of the lungs which of the following is true?…

A: Respiration is a biological process where oxygen-rich(for metabolism) air is inhaled from the…

Q: Immediately after the creation of an opening through the thorax intothe pleural cavitya. air flows…

A: Discussing about creation of an opening through the thorax into the pleural cavity.

Q: Which of the following is found in the respiratory zone of the lung? A. Goblet cells B. Main bronchi…

A: The objective of the question is to identify the type of cells or structures that are found in the…

Q: Compare the timing of respiratory movements during speech and tidal breathing. Compared to…

A: For speech, the expiratory phase is much longer, more drawn out. For speech, the inspiratory phase…

Q: Which of the following is where gas exchange occurs? A. alveoli B. trachea C. intercostal muscles…

A: During the process of gaseous exchange, oxygen moves from the lungs to the blood stream and at the…

Q: Among the factors that influence breathing rate and depth, the most important are changing levels of…

A: The respiratory system is regulated by respiratory centers located in the medulla oblongata and…

Q: Which is/are part of the respiratory membrane?   a. Plasma membrane of red blood cells   b. Type…

A: The respiratory system is responsible for the exchange of oxygen and carbon di-oxide between the…

Q: What type of epithelium lines the gas exchange surfaces of the alveoli?  a. pseudostratified…

A: An epithelium is a type of animal tissue made up of densely packed cells that rest on a basement…

Q: By what means are the lungs are attached to the walls of the thorax? Select one: a. Diaphragm b.…

A: Introduction: The pleura is a serous membrane that lines the thoracic cavity and lungs. It's further…

Q: Scenario: A patient arrives in the emergency room after struggling to breathe and is subsequently…

A: Asthma:  The lungs' airways are affected by the chronic inflammatory condition known as asthma.…

Q: Using the Anatomy and Physiology of the Human Body to Correlate Patient Sign and Symptoms What…

A: Hi. Since you posted more than one question, we will be answering the first two for you. If you want…

Q: On a cold day, the temperature of the air reaching alveoli is raised in the nasal passages because…

A: Within the two nasal passageways, separated by the nasal septum, there is a network of narrow…

Q: Contraction of the diaphragm and external intercostal muscles is an active process leads to: a.…

A: Respiration is an active process with two distinct steps - inhalation and exhalation. The process…

Q: Which of the following paths reflects the correct flow of air into the lungs?a. nasal cavity →…

A: The respiratory system is involved in supplying clean oxygen to the body and simultaneously, it…

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: A respiratory chemoreceptor is a sensory receptor that transduces a chemical signal into an action…

A: Respiration is a process by which the oxygen-rich atmospheric air enters the lungs and carbon…

Q: Inspiration occurs when:

A: Respiration is the process of exchange of gases. Inspiration is the movement of air from the…

Q: Where is an accidentally inhaled object, such as a peanut or a small piece of toy, likely to lodge…

A: The inhalation of a foreign object into the respiratory system is called pulmonary aspiration. The…

Q: which of these variables would NOT affect the ability of a gas to diffuse across the respiratory…

A: Respiratory membrane of the alveolus  consists of the alveolar wall, the capillary wall, and their…

Q: Write two paragraphs describing how air can go into the lungs and back out of the body.  Paragraph 1…

A: The process of gaseous exchange that is characterized by inspiration and expiration is more…

Q: The following story illustrates the development of a high altitude illness. You fly from Vancouver…

A: Although the percentage of oxygen in inspired air is constant with altitude, the partial pressure of…

Q: Select the letter of the choice that best completes the statement. The exchange of oxygen and carbon…

A: The human respiratory system is one of the major organ systems in the body that functions to provide…

Q: The main driver of normal quiet ventilation is: Select one: O a. the H* concentration in the…

A: Normal ventilation can be defined as an automatic, effortless inspiration and expiration process…

Q: Match the sequence of statements with the correct structures as you trace air through the…

A: The respiratory system comprises organs and tissues that make us breathe and involves our airways,…

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: What is the name of the sounds that you hear when the inflated sphygmomanometer is releasing…

A: The pressure exerted by the blood on the elastic wall of arteries is called blood pressure. It is…

Q: Although respiratory muscles are voluntary, you cannot hold your breath until you lose consciousness…

A: The upper brain stem (mesencephalon, pons, medulla oblongata, cerebellum) controls involuntary and…

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: Which of the following are mechanisms to prevent food from entering the larynx? (Check all that…

A: The objective of the question is to identify the mechanisms that prevent food from entering the…

Q: What additional muscle actions would be involved in a forced expiration a. Relaxation of abdominals…

A: The changes in the air pressure between the lungs and the atmosphere result in breathing or…

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: When the diaphragm ascends, the volume of the lungs increases. O a. True O b. False

A: Breathing is the process through which gaseous exchange takes place inside the body. It consists of…

Q: The diaphragm and the external intercostal muscles are contracted. Choose the true statement or…

A: Respiration is a biochemical process of oxidation of organic compounds in an orderly manner for 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: What happened to the left side of the bell jar when the valve was opened? O a. The intrapleural…

A: A pneumothorax is a condition where air enters the pleural space, the space between the lung and the…

Q: When considering the movement of air into the balloons (representing the lungs), which of the…

A:

Q: Compare the timing of respiratory movements during speech and tidal breathing. Compared to…

A: Tidal breathing refers to inhalation and exhalation when a person is at rest. Tidal volume refers to…