The ability of oxygen to bind hemoglobin changes with altitude as shown. Which statement, if true, BEST explains this observation?   A. The partial pressure of atmospheric oxygen decreases with altitude

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: Oxygen content of venous blood is measured in several vascular beds. Venous blood from which of the…

A: Oxygen content of venous blood is measured in several vascular beds. Venous vasculature contains…

Q: Which of the following statements is CORRECT? Select one: a. Reduction of atmospheric air pressure…

A: Alveoli are the sacs that are meant to bring about gaseous exchange from the blood. Alveolar PO2 is…

Q: After a person hyperventilates (such as by holding their breath), what can be detected on a…

A: Respiratory system- It is one of the systems in the human body that helps in the exchange of gases…

Q: Carbon monoxide poisoning occurs because a. CO2 and O2 compete for the same binding site on…

A: I Think You Have Written Wrong Options;  Option A Must Be (CO and O2 compete for the same binding…

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: What happens to Vital Capacity of someone with emphysema? a. Vital capacity stays the same, because…

A: The volume of air expired by the lungs after forceful inspiration and expiration is called vital…

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: Mountain climbers may have difficulty at high elevations becausea. the partial pressure of oxygen is…

A: The low pressure of oxygen makes it very difficult for the hikers to breathe. The lack of oxygen at…

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: Each molecule of hemoglobin can cary malecules of oxygen at once Select one a. four O b. three Cone…

A: Hemoglobin helps red blood cells to carry oxygen. Hemoglobin is composed of heme and globin. Each…

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: Which of the following causes an increase in hemoglobin’s 02 affinity? A. An increase in the partial…

A: The binding affinity of hemoglobin is affected by several factors such as pH, temperature, 2,3-BPG,…

Q: Which statement accurately explains why arterial walls are thicker than the walls of veins?   A.…

A: The circulatory system consists of three systems that work together; the heart (cardiovascular),…

Q: The amount of hemoglobin that contains oxygen is referred to as which of the following? a. Hypoxia…

A: Hypoxemia is the decreased oxygen levels in the arterial blood. It measures the partial pressure of…

Q: Which statement describes how carbon dioxide exits the bloodstream at its final destination?

A: Diffusion is the process which resulting from random motion of molecules by which there is a net…

Q: Ali, aged 28, normally does not suffer from asthma. However, he has an asthma attack at his work.…

A: Asthma is a condition where the air passage of a person becomes narrow or shows signs of…

Q: What produces the main driving force which drives quiet expiration? A. contraction of the…

A: C. Elasticity of the diaphragm muscle.

Q: Which statement is false about the trachea?a. It is lined with a nonkeratinized stratified…

A: The respiratory system is one of the important systems in the body that helps in the exchange of…

Q: What occurs as air descends down through the conducting zone and respiratory zone structure? a.…

A: The respiratory system is divided into two major zones, the conducting zone and the respiratory…

Q: Which of the following is incorrect? a. Hemoglobin transports oxygen through the blood from the…

A: Haemoglobin is a transport protein that is important for the transport of gases like oxygen in the…

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: Marine mammals are able to hold their breath for extended periods underwater because a. unlike…

A: Special properties of an oxygen-binding protein in the muscles of marine mammals, such as seals,…

Q: With rare exceptions, the majority of oxygen is transported in the bloodof vertebratesa. by binding…

A: Blood is a specialized connective tissue composed of two components plasma and formed elements.…

Q: what is the normal transpulmonary pressure (before expiration)? a. 0 to 4 cm/h20 b. 40 mmHg c. -4…

A: The lungs are a pair of breathing organs. It is positioned with a chest that brings oxygen to the…

Q: select answers that applies. if no possible answer explain why Alveolar ventilation-perfusion ratio…

A: Alveolar ventilation to perfusion ratio can be denoted as a V/Q ratio .It indicates about the…

Q: Compare the values below. Which is greater, or are the two walues equal?

A: Ans:  B is greater than A

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: In an animal experiment, lung alveoli are exposed to NO2. Massive necrosis of the epithelial lining…

A: The question is asking about the source of regenerated tissue in the alveolar epithelium of the…

Q: Give typing answer with explanation and conclusion what would respiratory therapist do to a patient…

A: • Respiratory therapists play a vital role in the management and treatment of respiratory…

Q: Do you think the oxygen and carbon dioxide levels were affected by the increase or decrease of…

A: The medulla oblongata is the primary respiratory control center. Its main function is to send…

Q: Which of the following are true? A. Peripheral Chemo receptors for O2 in H+ ions are found in the…

A: Introduction: The chemical regulation of respiration adjusts the ventilation so that the alveolar…

Q: QUESTION 4 Increasing temperature has what effect on the tendency for hemoglobin to bind to oxygen?…

A: Hemoglobin is a vital protein responsible for transporting oxygen throughout the body. The…

Q: Animals that live on land such as amphibians, reptiles, birds and mammals have lungs as major…

A: Lung development varies from animal to animal, depending on their evolution. The lungs are the…

Q: Using the above graph, what would the percentage of oxygen bound to hemoglobin be (approximately) at…

A: Hemoglobin is the iron based protein present in the red blood cells. They have a great affinity…

Q: What do nerve fibers do in the respiratory system?  Group of answer choices a. Constrict or dilate…

A: Nerve fiber or neurons carry messages from the sites of action to the central nervous system and…

Q: What is a common cause of respiratory alkalosis?

A: Respiratory alkalosis is a condition one which CO2 levels in the blood decreases mostly due to…

Q: In which zone would the lung have higher arterial pressure than in the venous and alveolar pressure?…

A: The human lung is divided into four vertical regions also known as  "Zones" on the basis of the…

Hematology

Hematology is the branch of biology. Hematology is the medical field that deals with the treatment of blood disorders and cancers, such as hemophilia, leukemia, lymphoma, and sickle-cell anemia. Hematologists and hematopathologists are medical professionals who specialize in illnesses of the blood and its components.