Explain what happens to the blood vessels in the lungs when the oxygen level is low compared to when the oxygen level is high

Q: Explain the changes in the atmospheric and intrapulmonary air pressure, muscle contraction, lung and…

A: Pulmonary ventilation is comprised of three pressures. Atmospheric pressure:It is the pressure of…

Q: Understand bronchodilation and bronchoconstriction. When does each happen? What causes each in a…

A: Bronchodilation is the dilation of the airways in the lungs due to the relaxation of surrounding…

Q: Describe two general ways in which the lungs can alter the concentrations of substances other than…

A: Lungs is responsible for the inhalation of air and exhalation of air which comes under respiration.…

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 effects of bronchodilation and bronchoconstriction on airflow.

A: Breathing or pulmonary ventilation consists of two phases: inspiration during which atmospheric…

Q: Using the letters on the diagram, match: Atmospheric O2, CO2 partial pressures ________        2.…

A: Respiration is a gaseous exchange of oxygen and carbon dioxide between the environment and body…

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: Describe the sequence of events that cause air to move into the lungs during inspiration and out of…

A: Inspiration and expiration are the two phases of the respiration that involves the exchange of gases…

Q: Describe the pathway carbon dioxide would take between the blood in the capillary and the alveoli.

A: INTRODUCTION The capillaries are small blood vessels found at the walls of alveoli.

Q: Explain how normal breathing occurs and how it is related to pressure and volume in the chest…

A: oxygen is utilised by the organisms to indirectly breakdown simple molecule like glucose, amino…

Q: State the volume of air remaining in the lungs after a normal breathing.

A: The major organs of the respiratory system are nose, pharynx, larynx, trachea, bronchi and lungs.…

Q: Explain why frequent forced expirations are fatiguing.

A: Oxygen is the terminal electron acceptor in the respiratory chain which produces energy in the form…

Q: Describe what happens to respiratory rate during normal metabolism

A: Respiration rates may enhance with fever, disease, and other ailments. While checking respiration,…

Q: Describe how the respiratory areas maintain a normal breathing pattern.

A: The process of breathing refers to the movement of oxygen from the environment to the cells and the…

Q: List the approximate partial pressures for Oxygen and Carbon Dioxide:   Location O2 CO2…

A: Atmosphere: O2 is 20.9% (total composition) and 158.8mmHg CO2 is 0.004 % (total composition) and 0.3…