What are the passageways leading from the nose to where oxygen can be absorbed into the blood stream? Explain how both diffusion and convection are necessary to deliver oxygen from the nasal cavity to the cells of the body.

Q: In the illustration of the alveolar wall, which of the following labeled cells produces a substance…

A: 5.  Alvoeli are basic respiratory units and are the tiny air sacs or air spaces , in which gaseous…

Q: How are the lungs designed in human beings to maximize the area for exchange of gases?

A: Lungs which are part of respiratory system helps to provide enough supply of oxygen to the different…

Q: How would blocking the structures of the conducting zone of the respiratory tract impair…

A: Ventilation is defined as the breathing movement of air in between outer atmosphere and lungs in…

Q: How does the respiratory system contribute to homeostasis in the body?

A: The cells are the primary unit of life. Based on the number of cells an organism may be unicellular…

Q: How are the respiratory and the circulatory system connected? How does oxygen reach your tissue…

A: Our bodies are made up of a number of biological systems that each perform a specific function that…

Q: How does the pressure in the lungs compare to the pressure in theatmosphere during inhalation?…

A: RESPIRATION:- Organisms use oxygen to breakdown indirectly molecules like glucose, fatty acids,…

Q: What accounts for the spongy texture of the lungs? What is the functional significance of the rich…

A: Question - 1   What accounts for the spongy texture of the lungs? Question - 2  What is the…

Q: How is the structure of the alveoli adapted for diffusion?

A: The respiratory bronchioles open into alveolar ducts which terminate into an extended passage known…

Q: What is the approximate ratio of length to width for epithelial cells of the trachea?

A: Epithelial cells are the surface cells of the organ and the skin

Q: What generates the diffusion gradients for oxygen and carbon dioxide in the tissues?

A: Gas molecules move along the concentration gradient, that is from a region of higher concentration…

Q: List the functions of the Conducting Zone of the Airways?

A: Cell is the basic unit of life. Based on the number of cells an organism may be prokaryotic or…

Q: BASED ON THE TEXT, what is meant by "semipermeable membrane" and why is it necessary to gas exchange…

A: Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell…

Q: The diffusion coefficient of a gas is a constant and is not affected by disease states or treatment…

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

Q: In pneumonia, fluid accumulates in the alveoli of the lungs. How would this accumulation affect…

A: Vital capacity (VC) is the greatest measure of air an individual can remove from the lungs after a…

Q: Describe the four respiratory processes - ventilation, external respiration (gas exchange at lung),…

A: Respiration is a catabolic process through which respiratory substrates such as carbohydrates, fats…

Q: What are the components of the respiratory membrane? Include 4

A: The part of the lungs that actively participates in the gaseous exchange with the blood is the…

Q: Define the term conducting airways?

A: These are those sections of respiratory system that do not directly participate in gas exchange,…

Q: How is oxygen and carbon dioxide transported in human beings?

A: Oxygen is essential for the cells to breakdown the nutrients to obtain energy. The resulting carbon…

Q: Describe two ways in which atmospheric air can enter thepleural cavity.

A: Pleural cavity is the body cavity enclosed by the parietal pleura. It includes the lungs, the hilar…

Q: Describe the function of the cilia in the respiratory tubes.

A: The respiratory system involves various organs and allied parts that enable breathing. It involves…

Q: Human Lung Describe how the histological structure of the lung relates to its function as a site…

A: Human lung - It is a pair of spongy organ which is air filled and is located on either side of…

Q: What are the differences between the conducting zone vs the respiratory zone?

A: The major respiratory structures span the nasal cavity to the diaphragm. Functionally, the…

Q: What is the role of gas partial pressures in pulmonary diffusion

A: Diffusion is the natural flow of molecules between the oxygen in the alveoli and the blood in the…

Q: When researchers first discovered that airflow through a bird’s paleopulmonal parabronchi is…

A: If we have a tendency to assume the blood flow is in some sense one-way relative to the long axes of…

Q: Describe three ways carbon dioxide can be transported from cellsto the lungs.

A: Transport of Carbon dioxide  The blood transports carbon dioxide Comparatively easily because of its…

Q: the lungs of mammals, airways branch into a series of narrowing tubes that end in Alveoli. How does…

A: The air moves into the lungs through the nostrils, the throat, pharynx, larynx, trachea ,the…

Q: why it is important that fetal haemoglobin has higher oxygen affinity than adult haemoglobin

A: Blood is a fluid connective tissue that comprises red blood cells (RBC), white blood cells,…

Q: Describe diffusion of gases across the lungs and capillaries.

A: Exchange of oxygen and carbon dioxide takes place in the alveoli of lungs and blood capillaries.

Q: explain why air passages are hold open?

A: The respiration system in terrestrial higher phyla animals(Mammals, Aves) Primarily involves air…

Q: Where in the body is the partial pressure of carbon dioxide the highest? Select one: a) Alveolar air…

A: Systemic circulation supplies oxygenated blood to tissues, and in return it brings deoxygenated…

Q: What is the role of air pressure in the exchange of gases between the lungs and the environment?

A: respiration is the movement of oxygen from the outside environment to the cells within tissues, and…

Q: What is the role of cilia and mucus in the respiratory system?|

A: Cilia and mucus plays a vital role in respiratory system and defense. Cilia are tiny hairs that…

Q: Which of the following correctly describes the movement which takes place when mucus is pushed…

A: A very thin airway surface liquid (ASL), usually 5 to 10 μm deep, protects the lungs' airways from…

Q: Know how to read a respiratory graph such as below. For example, what is the increase to 6 L…

A: The respiratory system can be divided into two parts upper respiratory tract, and the lower…

Q: Which of the following represents the pathway of the respiratory system? Nasal cavity, trachea,…

A: Respiration is an essential physiological process that helps in the exchange of mainly oxygen and…

Q: Will the gases continue to diffuse in these directions, or will they stop at some point? For…

A: There is a diffusion of gases like oxygen and carbon dioxide that takes place at various sites in…

Q: Why is the pulmonary circulation considered to be a circuit that keeps the lungs dry?

A: Pulmonary circulation ensures the supply of oxygenated blood to the body in a continuous fashion.…

Q: What are the characteristics features of the airways in a patient with asthma

A: Asthma is a allergic condition in which lungs become inflamed and narrowed making it difficult to…

Q: How does the respiratory and circulatory systems work together to transport oxygen to and from the…

A: The respiratory system is the physiological system that is responsible for the exchange of gases…

Q: what are some of the mechanisms used in the respiratory system to prevent infection ?

A: The respiratory system helps to provide oxygen to the body for the cellular respiration of the…

Q: which structure in the respiratory system is the site of gas exchange?

A: The body movements allowing air to enter and leave the lung. It is done by Inhalation and…

Q: what is the oxygen pressure in alveoli, arterial blood and tissue? what is the direction of oxygen…

A: Oxygen is a gas an essential for aerobic respiration. In aerobic respiration glucose are transformed…

Q: How is oxygen and carbon dioxide transported across the lungs to the blood? How are they each…

A: The exchange of gases oxygen and carbon dioxide from the lungs into blood happens through the…