Gas exchange between systemic blood vessels and the tissues is called a. Tubular secretion b. External respiration c. Pulmonary ventilation d. Internal respiration

Q: The _________prevents most inspired particles such as dust from reaching the lungs.     A. action…

A: Lungs inhale oxygen through inspiration and exhale carbon dioxide through expiration. Air is…

Q: Two opposing mechanisms determine alveolar expansion:_________ leads to alveolar expansion,…

A: The objective of the question is to identify the two opposing mechanisms that determine alveolar…

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 best describes the gas exchange that occurs in the lungs?    A. carbon…

A: Ans- c.  carbon dioxide diffuses from the capillaries into the alveoli

Q: Most of the carbon dioxide in the blood is carried in the form of a. dissolved CO2 b.…

A: The respiratory system is the network of organs and tissues that helps an individual breathe. It…

Q: If the transpulmonary pressure equals zero,a. a pneumothorax has probably occurred.b. the lungs…

A: If 'transpulmonary pressure becomes (alveolar pressure = intrapleural pressure), such as when the…

Q: Which one of the following is the beginning of the lower respiratory tract? a. trachea b. nasal…

A: The lower respiratory tract is the lower portion of the lungs from where respiration takes place.…

Q: Carbon dioxide when traveling in the form of bicarbonate ion does so ______   a. bonded to water…

A: carbon dioxide is transported in the blood as bicarbonate ion .In this reaction H+ ion also produce…

Q: Which of the following statements are true of the alveoli and pulmonary capillaries? (Read carefully…

A: During respiration, diffusion accounts for the majority of gas exchange. A concentration gradient…

Q: Which of the following prevents the aspiration of foods and liquids?A. EpiglottisB. Cricoid…

A: Oral cavity is separated from the nasal cavity by the hard palate and soft palate. Oropharynx region…

Q: Type II alveolar cell…  A. senses 02 level and sends that information to the respiratory centers in…

A: Produces surfactant to counteract the surface tension that would collapse the alveoli

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: The majority of carbon dioxide in the blood is transported by ________. a. binding to hemoglobin b.…

A: BASIC INFORMATION  COMPONENTS OF BLOOD    It is the body fluid which helps in transportation of all…

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: Oxygen is mostly transported in the blooda. dissolved in plasma.b. bound to blood proteins.c. within…

A: To receive energy to maintain all our living systems, our body requires oxygen. A waste product of…

Q: Gas exchange occurs in the ________, small air sacs at the ends of the bronchioles.a. alveolib.…

A: Gas exchange during respiration occurs mainly via diffusion. It is a process in which transport…

Q: Sinus Headaches are caused by: A. Drainage of the sinuses B. Inflammation of the sinuses C. Both…

A: Sinus headaches cause deep and constant pain in cheekbones, forehead, and bridge of the nose. The…

Q: The C-shaped cartilages in the tracheaa. serve as a point of attachment for some muscles…

A: Tracheal cartilages: The trachea also called the windpipe houses tracheal rings/tracheal cartilages…

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: Vital capacity is the_____ . a. amount of hemoglobin in a red blood cell b. amount of time a person…

A: Lung volume and lung capacity are the two main terms used in the respiratory system. Lung volume or…

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: when carbon dioxide travelling in the plasma reaches the alveolus and is exhaled, then what happens…

A: Introductio:- the respiratory system are to provide adequate oxygen supply (O2) to meet the needs of…

Q: Bronchi are lined with pseudo stratified epithelium. As the airways continue distally & the…

A: Epithelial tissues are widespread throughout the body. They are major tissue in glands and form the…

Q: During expiration:   A. The diaphragm is relaxed to the make the thoracic cavity larger. B. The…

A: Breathing is a complex process that consists of the inhalation and exhalation phase. The air moves…

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 factors indicate the need to intubate?  I. prolonged positive pressure…

A: To support the patient to breath during anesthesia, or any other severe illness, an endotracheal…

Q: Pulmonary edema can occur at high altitude this is happening because a. Of the swelling of the…

A: Pulmonary edema can occur at high altitude this is happening because  Of the leakage of fluid out of…

Q: During speech the circumference of the chest wall increases and decreases as it moves air in and out…

A: During speech the circumference of the chest wall increases and decreases as it moves air in and out…

Q: 12 Conditions such as pneumonia and lung cancer can result in what is known as a pleural effusion,…

A: The human respiratory system has a pair of lungs. Each lung is separated from the thoracic wall by…

Q: Which of these statements does NOT correctly describe hypercapnia? a. It is observed in…

A: The objective of the question is to identify the statement that does not accurately describe…

Q: select the applicable structures a.Pulmonary circulation b.Systemic circulation c.Carries…

A: The given image is labelled as follows;

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: 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…