Jumping into cold water may initiate the “diving reflex,” during which blood is shunted toward the head and away from the limbs. Under these conditions, why might you be able to hold your breath for an extended period?

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: Which of the following is where gas exchange occurs? A. alveoli B. trachea C. intercostal muscles…

A: During the process of gaseous exchange, oxygen moves from the lungs to the blood stream and at the…

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: Which of these statements about the partial pressure of carbon dioxide is true?a. It is higher in…

A: The measure of carbon dioxide in the artery and veins is called partial pressure of carbon dioxide…

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: Why is it important to distract a person when you are determining the normal rate of breathing?

A: The breathing process is the inhalation of oxygen and exhalation of carbon dioxide in humans. The…

Q: Is carbon dioxide transported from the bloodstream to the alveoli or from the alveoli to the…

A: A lung's functional components are known as alveoli. These tiny air sacs are located in the lungs…

Q: 47 A 45-year-old woman with asthma comes to the physician because of shortness of breath for 3 days.…

A: Asthma is one among the common non communicable diseases that is present globally. The…

Q: A person in yoga class is encouraged to take long, slow, deep breaths. Would this person have…

A: Answer- Alveolar ventelation is the exchange of gases of both oxygen and carbon dioxide between…

Q: Compare and Contrast Breathing Respiration

A: Breathing and respiration are the major processes that are important for the normal functioning of…

Q: You watch a live individual respiring (that is, obtaining oxygen from its environment). What…

A: When we hear the word respire, we think of breathing. When we breathe, with each inhale we are…

Q: What will happen to the body if you hold your breath for a min? long Explain

A: Breathing is the mechanism in which the oxygen is taken into the body and carbondioxide is released…

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

A:

Q: The toxins in cigarette smoke damage the cells of the tissue capillaries and also cause arterioles…

A: The oxygen dissolved in the red blood cells reached the tissues of the body. Oxygen diffuses into…

Q: The amount of air moved in and out of the lungs with each normal resting breath is the (a) vital…

A: Lungs are the spongy air-filled organs of the thoracic cavity that function as the primary gaseous…

Q: Respiratory organs of invertebrates and vertebrates are similar in that a. they use negative…

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

Q: Diffusion of gases occurs in the alveolar region only and not in the other parts of respiratory…

A: Each alveolus is composed of a thin layer of squamous epithelial cells that are highly permeable and…

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 lungs perform a variety of which functions?

A: Lungs are the primary respiratory organ for pulmonary respiration. Lungs are supplied with air…

Q: Imagine that you are playing basketball. How would your breathing be affected? What mechanisms are…

A: Homeostasis means equilibrium. The cellular functions are carried at specific conditions like pH and…

Q: Your friend thinks that while he is inhaling, the pressure in his lungs increases because they are…

A: Inhalation It is the process of breathing in. Though this process the air enters the lungs and…

Q: Draw figures showing the reactions carbon dioxide undergoes entering the blood in the tissue…

A: Carbon dioxide is transported through the blood in three ways. Mainly carbon dioxide diffuses from…

Q: Explain why inspiration is considered the active phase ofventilation, and expiration the passive…

A: Pulmonary ventilation Pulmonary means relating to the lungs or lung tissue. Pulmonary ventilation is…

Q: Contrast the events of inhalation and exhalation.

A: The respiratory system carries the network of tissues in the body for breathing. Some of the muscles…

Q: Which of the following is the primary method by which carbon dioxide is transported to the lungs?…

A: Answer is d.) As bicarbonate.

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: Why is it dangerous for a swimmer to hyperventilate in order to hold the breath for a longer period…

A: Hyperventilation is a condition of fast breathing, which results in expelling out more carbon…

Q: When individuals are hyperventilating, they are told to breathe into a paper bag or into their…

A: The body of humans consists of a number of systems that work together to maintain the homeostasis of…

Q: How does the circulatory system maintain a constant flow of gas exchange (diffusion) across the…

A: Blood arteries that convey blood away from and towards the heart make up the circulatory system.…

Q: What happens to the respiratory process in a man going up a hill?

A: Aerobic respiration is a type of cellular respiration, in which the oxygen is consumed as a reactant…

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: You have finished exercising with a friend, who says that he is breathing rapidly because he must…

A: A chemical reaction occurs when one or more compounds combine to form a new compound. Solid calcium…

Q: How can problems with ventilation could affect someone's ability to carry out cellular respiration.

A: Cellular respiration is the process by which energy in the form of ATP is produced from the digested…

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: 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: At high altitudes, the partial pressure of oxygen is lower. How might you expect this lower oxygen…

A: The role of oxygen in the human body is much more important in sustaining life. The fall in oxygen…

Q: Considering the nature of negative-feedback control and the function of the respiratory system, what…

A: Respiration involves inspiration and expiration. The intake of oxygen and the release of carbon…

Q: explain the relative roles of the respiratory muscles and lung elasticity in producing the volume…

A: Pulmonary ventilation is defined as the process of breathing that is governed by atmospheric…

Q: Why is the rate if breathing much faster in aquatic organisms than those of terrestrial organisms?

A: Breathing is a physical process through which we intake fresh air and remove foul air. The gas which…

Q: Callisto has managed to escape Xena, and therefore Xena decides to rest for the night in a small but…

A: In the deep cave at high altitude place near  More than 3,500m, leh you must have experienced what…

Q: The alveoli in the lungs where gas exchange occurs are composed of a simple squamous epithelium.…

A: Respiration is the metabolic process of taking in oxygen and giving out carbon dioxide. This process…

Q: The two factors that determine airflow are the pressure gradient and resistance. What are the three…

A: Breathing is a popular term for pulmonary ventilation. It is the mechanism of airflow to and from…

Q: During very heavy exercise, the steady-state third stage of breathing pattern may not be seen. Why?

A: Workout improves physical movement, and muscle cells breathe more than when the person is at rest.…

Q: If the partial pressure of oxygen in inhaled air was 80 mm Hg instead of 160 mm Hg, what would be…

A: Answer: Introduction: The oxygen in inhaled air passes transversely in air sacs, the blood vessels.…

Q: The force causing air to flow into the lungs during ventilation is: Decreased lung pressure…

A: Air flows inside and outside the lungs die to the pressure difference in atmosphere and inside…