exchange of gases takes place in the alveoli of the lungs.

Q: Describe the relationships among the trachea, bronchi,bronchioles, and alveoli.

A: Human respiratory organs form a passage through which air transports- it is called as  respiratory…

Q: Describe the structure of the alveoli?

A: Step 1 The respiratory system is a system consisting of the respiratory tract, respiratory organs,…

Q: Explain how the lungs maintain negative pressure and how this allows respiration.

A: The process of gas exchange occurs between an organism and its environment is known as respiration.…

Q: Describe the structure of the bronchial tree.

A: The trachea branches into the bronchial tree.

Q: Summarize the process of oxygen and carbon dioxide transport within the respiratory system

A: O2 is transported in the blood by two carriers: i) 97% by hemoglobin (Hb) and ii) 3% by circulating…

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

A:

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: he structure of alveoli is suited to their function.

A: The alveoli are custom-made to create gas exchange in lungs happen simply and with efficiency. Here…

Q: Explain how the alveoli increase the efficiency of the respiratory system.

A: The human respiratory tract is made up of the nostril, larynx, nasal chamber, pharynx, trachea,…

Q: Relate the microscopic anatomy of the pulmonary alveoli to their role in gas exchange?

A: Introduction: The respiratory tract of a human is divided into two types: lower airways and upper…

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: Explain why the alveoli normally do not fill with fluid.

A: The respiratory system is a web of organs and tissues, which regulate a person’s breath. This…

Q: This connects the larynx to the bronchi in the lungs.a. epiglottis c. tracheab. pleura d. esophagus

A: The lungs are a pair of air-filled, spongy organs on either side of the chest (thorax). Via its…

Q: Explain why the alveoli have a high surface area.

A: Alveoli(Site of gas exchange)  The bronchioles end in a cluster of minute air sacs called the…

Q: Trace the path of air from the nasal cavities to the lungs.

A: Breathing is described as the movement of air between the atmosphere and the lung. It involves two…

Q: Contrast the processes of inspiration and expiration during ventilation.

A: Respiration is the oxygen movement from the outside environment to the tissues and cells of the…

Q: Diagram the changes in intrapleural pressure and alveolar pressure.

A: In human physiology, intrapleural pressure is defined as the pressure taking place in the pleural…

Q: _____________ is secreted by type II alveolar cells in the mammalianlungs and prevents the collapse…

A: Answer is option e.) Surfactant.

Q: Give examples of interactions between the respiratory system and other body systems.

A: Some examples of interactions between the respiratory system and other body systems are :…

Q: State the alveolar partial pressures for oxygen and carbon dioxide in a healthy person at rest.

A: Introduction: The pressure that is exerted by a single gas component inside a mixture is referred to…

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: Describe the functional anatomy of alveoli, and the superficial anatomy of the lungs.

A: Lungs are the primary organs of the respiratory system which is responsible for the process of…

Q: Find the total surface area of alveoli.

A: The process of breathing oxygen i.e inhalation and breathing out carbon dioxide i.e exhalation is…

Q: Air moves into the alveoli as a result of the: (A)Decreased pressure in the chest cavity (B)…

A: Introduction Inspiration/ inhalation is the process when the air in the atmosphere get in to the…

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: Sketch a picture of the right and left lungs in anterior view, showing all the fissures and lung…

A: Lungs are the respiratory organs that are involved in gaseous exchange. There is a pair of lungs in…

Q: list the strucutures in the respiratory pathway from where air enters the nares to the alveoli

A: Respiratory system in human body can be categorized to respiratory tract and lungs. Respiration is a…

Q: Describe the impact narrowing or widening the passages of the airway would have on gas exchange.

A: The lungs are organs of the body that helps in the exchange of gases (oxygen, carbon dioxide)…

Q: Trace a pathway for an oxygen molecule to travel from the nose to the alveoli. Be certain to state…

A: Air enters through the nose (nostrils) or sometimes through the mouth, moves through the nasal…

Q: Explain how cigarette smoking impacts the lungs at the physiologic level.

A: Smoking is a condition in which a person gets addicted to tobacco smoke due to the addictive…

Q: trace the flow of air beginning with the air in the atmosphere and ending with the alveoli

A: Breathing occurs in two steps- 1. Inspiration- In this method we take air inside the body. 2.…

Q: Explain the two general features that breathing organs share, which optimize gas exchange.

A: Organisms require oxygen for carrying out their metabolic processes, and in the process, they give…

Q: Which of the following is considered the structural and basic functional unit of the lung that is…

A: Alveoli is basic unit of lungs in which there are gaseous exchange had been done during respiration…

Q: List the parts of the respiratory zone in the correct sequence: alveolar ducts, alveoli, les,…

A: The conducting zone includes most of the respiratory tract that conducts gases into and out of the…

Q: The functions of C-shaped tracheal cartilages are to prevent collapse or over-expansion of the…

A: Cartilage is a type of connective tissue which is formed from chondrocytes .

Q: Discuss how inhaling increased amounts of CO2 affects pulmonary ventilation.

A: Pulmonary ventilation is usually referred as breathing. It includes the flowing of air into the…

Q: Compare and contrast the right and left lungs.

A: Lungs are the principal organs of the human respiratory system. They play a vital role in moving the…

Q: Explain how carbon dioxide is transported from the tissues to the lungs?

A: The process of cellular respiration that takes place in the mitochondria of cells is responsible for…

Q: Describe the adaptation of the alveoli.

A: During the act of inhaling in and exhaling out, the alveoli are where the lungs and blood…