Q: The lungs do not normally collapse because of:
A: In the aerodynamics of the lung volume flows, there is a following rationale. Suppose there are two…
Q: The anterior air sacs would always have a higher po2 than the posterior air sacs. Anterior. air sacs…
A: The respiratory system of birds transports oxygen from the atmosphere to the tissues while also…
Q: The two openings of the pharynx, one leading to trachea and the other leading to oesophagus, lie…
A: The pharynx is the common structure involved in both the respiratory system and the digestive…
Q: pressure (true , false)
A: Exhalation can be defined as the flow of the breath out of the organism. In animals, it can be…
Q: Callisto has managed to escape Xena, and therefore Xena decides to rest for the night in a small but…
A: Intrapleural pressure is negative relative to atmospheric and intrapulmonary all through ordinary…
Q: Describe the effect that impulses from the pneumotaxic and apneustic centers in the pons have on the…
A: The process of breathing refers to the gaseous movements through the air passageways that occur for…
Q: Place these respiratory organs in the correct order that air would flow down the respiratory tract.
A: Animal physiology is the systematic study of the supporting features, roles, and processes of…
Q: Some inhaled air does not participate in gas exchange because it fills the _____ of the respiratory…
A: Dead space is the amount of air that is inhaled but remains in either conducting airways or alveoli…
Q: The primary bronchi and pulmonary blood vessels penetrate the lung at a medial slit called the…
A: Lungs are the paired organs present in the thorax which are the main site of respiration in the…
Q: Suppose that the thoracic wall is punctured at the end of a normalexpiration, producing a…
A: Pneumothorax is the condition in which air leaks in the space between the lung and the chest wall,…
Q: Describe the process of inhalation in the air pressure in the chest cavity
A: Breathing is a process mainly consist of two activities, inhalation and exhalation. It is a process…
Q: Explain why puncturing the pleural membrane (pneumothorax) causes the lung to collapse
A: Pleural membrane helps in the protection and lubrication of lungs.As lungs expands and contract…
Q: نقطة واحه Which of these is incorrect .concerning inspiration Pressure in lungs decreases, and air…
A: In order to provide O2 to tissues and remove CO2 from the body, the processes of inhalation…
Q: Explain why a person with ketoacidosis may hyperventilate. What benefit might it provide? Also…
A: Acidosis is the condition when the blood pH drops below the normal range.
Q: Explain why the first breath of a healthy neonate is more difficult than subsequent breaths and why…
A: Respiration is the oxygen movement from the outer environment to cells and the carbon dioxide…
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: People usually think of the lungs and breathing when they think of the respiratory system. describe…
A: Respiratory system is one of the most important system present in our body. Its main function is…
Q: Explain the role of the thoracic wall in respiration
A: The respiratory (gas exchange) system is an organ system that helps an individual or organism to…
Q: The largest cartilage of the larynx is the _____ cartilage.
A: Every human being has got a skeleton. A skeleton not only protects the human body but also enables…
Q: The bronchi lead to the: bronchioles
A: The respiratory system is a collection of organs and tissues that assist us in breathing, exchanging…
Q: Within each lung, the airway forms a branching complex called the _____.
A: The respiratory system is a system that mainly functions to deliver oxygen (O2) to the tissues in…
Q: In both lungs, the surface that is the largest is the (a) costal, (b) mediastinal, (c) inferior…
A: The respiratory system of humans is a network of organs and tissues that work together to help the…
Q: which leads to movement of When the diaphragm is contracted, intrapleural pressure a. air decreases;…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: What prevent the lungs and chest wall move inward during expiration
A: Expiration is the flow of the breath out of an organism. It is the movement of air from the lungs…
Q: Increased ventilation that results in an increase in bloodpH is called ________.a.…
A: The movement of air between the atmosphere and the lungs through inhalation and exhalation is known…
Q: State the reason why the alveolar membrane is well suited for diffusion of gases.
A: Alveoli are tiny balloon shaped structures and are the smallest passage in the respiratory system.…
Q: The superficial layer of the pleura is calledthe pleura.
A: The lungs are the primary organs of the respiratory system that is located in the thorax. It…
Q: The ________ circulation picks up oxygen for cellular use and drops off carbon dioxide for removal…
A: Blood is the body fluid that is composed of plasma and formed cell that circulates through the…
Q: If blood passing by a lung has less O2 than inside the lung itself, then the O2 will due to
A: Lungs are important organs in the respiration process and supplying oxygenated blood to the vital…
Q: Which of the following gases readily combines with the haemoglobin of the blood? Carbon monoxide…
A: Hemoglobin(Hb or Hgb) is the member of the iron-containing oxygen-transport metalloprotein family in…
Q: Which of the following correctly describes the movement which takes place when mucus is pushed…
A: The human respiratory framework is an arrangement of organs liable for breathing in oxygen and…
Q: As the diaphragm contracts, the rib cage expands and the lungs fill with air. This is an inhalation…
A: The diaphragm is a major muscle involved in respiration and is present below the lungs. It is a dome…
Q: Name the gas that reduces oxygen carrying capacity of the blood.
A: Hemoglobin is a protein molecule found in red blood cells that help in carrying oxygen to different…
Q: Which three factors control how much and how fast oxygen diffuses from the alveoli to the blood in…
A: Respiration is the process by which oxygen is taken inside the body and carbon dioxide is released…
Q: Even people in “good shape” may have trouble breathing at highaltitudes. Explain how this can…
A: The number of gas molecules in the air decreases as altitude rises, making the air less dense than…
Q: Factors affecting respiration
A: Respiration is defined as the exchange of gasses from the lungs to the environment.…
Q: The great alveolar cells secrete aphospholipid–protein mixture called
A: Step 1 Each lung has about 300 million alveoli. Alveoli constitute the functional units of the…
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: Describe the properties of haemoglobin that enable it to carry out its function of oxygen and carbon…
A: Introduction Hemoglobin:- It is a protein inside red blood cells that carries oxygen from the lungs…
Q: Breathing in too much carbon monoxide will most likely result in the production of what
A: The process of cellular respiration is by which nutrients are broken down and are converted to…
Q: Dipal mitoylphosphatidylcholine is the major component of surfactant, or surface active agent (an…
A: Dipalmitoylphosphatidylcholine is the primary constituent of surfactants present in pulmonary…
Q: describe the action of the diaphragm muscle and the intercostal muscles (the ones between the ribs)…
A: diaphragm is an elastic tissue which is present beneath the lungs . intercostal muscles are those…
Q: The chloride shift refers to the exchange of chloride ions for carbon dioxide gas across respiratory…
A: Chloride shift is also known as Hamburger phenomenon. It is found during the gaseous transport in…
Q: If a person’s lungs are compromised, they can use supplemental oxygen to increase the concentration…
A: Answer: Introduction: Oxygen- O2 is a gas present in atmosphere vital for existence of all living…
Q: Name one respiratory structure unique and special to each of the following vertebrate animal.…
A: Cartilaginous fish Notwithstanding breath, in teleosts fish , the respiratory framework has…
Q: Which statement correctly explains why respiration rate elevates with exercise as compared to at…
A: Respiration is the process of inhaling oxygen and exhaling carbon dioxide. The lungs and the…
Q: True or False and why. "If a person exhibits alveolar partial pressure for oxygen equivalent to that…
A: The pulmonary tract warms and humidifies the air before it is inhaled through the higher airways. As…
Q: The force responsible for normal expiration is supplied by_. contraction of the pectoralis minor the…
A: Expiration is the process of exhalation of carbon dioxide from the lungs. This occurs due to…
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- Stephanie was hysterical and hyperventilating, so a doctor made herbreathe into a paper bag. An especially astute student said to thedoctor, “When Stephanie was hyperventilating, she was reducingblood CO2 levels; when she breathed into the paper bag, CO2 wastrapped in the bag, and she was rebreathing it, thus causing bloodCO2 levels to increase. As Stephanie’s blood CO2 levels increased,her urge to breathe should have increased. Instead, she began tobreathe more slowly. Please explain.” How do you think the doctorresponded? (Hint: Recall that the effect of decreased blood CO2 onthe vasomotor center results in vasodilation and a sudden decreasein blood pressure.)When muscle cells are very active during exercise, they use more ATP energy.Explain how this is related to increased breathing rate and depth (taking moreand deeper breaths) both during exercise and for some time after you finishexercising. Be specific about the cellular respiration processes, inputs, andoutputs occurring in the cells that cause your body to respond with a changein breathing.You decide to cure your hiccups by breathing into a paper bag. Assumethat the bag is initially filled with 500 ml air (referenced to BTP) havingthe ambient air composition given in Table. Assume a breathing rateof 12 breaths/min, a CO2 production rate of 235 ml/min at BTP, and anO2 consumption rate of 284 ml/min at BTP. You can also assume that youbegin by inhaling all the air in the bag (i.e., tidal volume is 500 ml for thefirst breath), and that on each subsequent breath you increase your tidalvolume so as to completely empty the bag on inhalation. Compute the CO2concentration (as a percentage) in the bag after exhalation on the 10th breath.Although not particularly realistic, you can assume that the normal amountof CO2 is transferred from the lungs to the expelled air with every breath,even though the CO2 concentration in the bag is continually increasing
- Air is pulled into the human respiratory tract mainly because ofvolume changes in thea. nose. c. chest cavity.b. pharynx. d. trachea.Using the set of data that follows, calculate how many of themolecules of O2 that were used in aerobic catabolism by JuliusCaesar are in each liter of atmospheric air today. All valuesgiven are expressed at Standard Conditions of Temperature andPressure (see Appendix C) and therefore can be legitimatelycompared. Average rate of O2 consumption of a human maleduring ordinary daily activities: 25 L/h. Number of years afterhis birth when Caesar was mortally stabbed near the RomanForum: 56 years. Number of liters of O2 per mole: 22.4 L/mol.Number of moles of O2 in Earth’s atmosphere: 3.7 × 1019 mol.Number of molecules per mole: 6 × 1023 molecules/mol. Amountof O2 per liter of air at sea level (20°C): 195 mL/L. Be prepared tobe surprised! Of course, criticize the calculations if you feel theydeserve criticism.There are advantages and disadvantages to using wateror air as the respiratory medium from which an animal takesin oxygen. Which statement below is false?a. Aquatic animals do not have to worry about keepingtheir respiratory surfaces moist.b. Air has a higher concentration of oxygen than waterand varies mostly with altitude only.c. Air has a constant concentration of 21 percent andwater has a constant concentration of 6 percent.d. For terrestrial animals, air is easier to move overrespiratory surfaces because it is less dense than water.
- If a molecule of CO2 released into the blood in your left toeis exhaled from your nose, it must pass through all of thefollowing except(A) the pulmonary vein.(B) the trachea.(C) the right atrium.(D) the right ventricle.Which of this statement is TRUE for pulmonary respiration?a) Exchange of gases between alveoli of lungs and the bloodb) Exchange of gases between blood and tissue cellsc) Breathing between the atmosphere and the alveoli of the lungsd) Production of ATPWatch this video (http://openstaxcollege.org/l/oxyblood) to see the transport of oxygen from the lungs tothe tissues. Why is oxygenated blood bright red, whereasdeoxygenated blood tends to be more of a purple color?
- Fill up Embryonic and fetal forms of ______ bind oxygenmore tightly than does the adult form, helping to ensurethat the growing embryo/fetus receives sufficient oxygenfrom the mother’s blood.2.How cigarette smoke trouble the aging of lung cells, through oxidative stress, casue COPD progression., Can you explain more details of oxidative stress in precise stentece ....as well tahnks so much 3. Hepatic congestion and peripheral oedema happen due to what kind of blood cannot enter the lungs and so returns to the venous system, ..... ThanksThe “bends” or decompression sickness is a formof air embolism. When scuba or deep sea diversare under higher pressure, more nitrogen gasdissolves in the blood and tissue fluids. Usually aslow ascent to the surface (lower pressure) allowsthe gas to be gradually dissipated and exhaled. Ifa diver rises to the surface too rapidly, the gascomes out of solution, forming bubbles or gasemboli in the circulation. Explain why ischemiaand pain may occur in various tissues such asmuscle, joints, or the heart.
