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The surface tension exerted by water in the alveoli prevent collapse of the alveoli during exhalation?
False
How many phases in one breath?
There are two phases in one breath: inhalation and exhalation. During inhalation, air is drawn into the lungs, and during exhalation, air is expelled from the lungs.
How carbon dioxide and oxygen exchange in lungs full answer?
During inhalation, oxygen from the air is diffused from the alveoli in the lungs into the bloodstream, binding to hemoglobin in red blood cells for transport to cells. At the same time, carbon dioxide produced by cells is released into the alveoli and expelled during exhalation. This exchange is facilitated by differences in partial pressure between the alveoli and the blood, as well as the high surface area and thin walls of the alveoli for efficient gas exchange.
The lipoprotein film covering the alveoli serves to what?
The lipoprotein film covering the alveoli serves to reduce surface tension, preventing the collapse of the alveoli during exhalation and promoting efficient gas exchange in the lungs.
How does air move into the lungs during exhalation?
Nasal cavity Pharynx Larynx Trachea Bronchus Bronchioles Alveoli
What is the function of type 2 alveoli walls?
Type 2 alveoli cells secrete surfactant, which helps to reduce surface tension in the alveoli. This allows for easier expansion of the alveoli during inhalation and prevents them from collapsing during exhalation, promoting efficient gas exchange.
What system exchanges oxygen and carbon dioxide with the air?
The respiratory system exchanges oxygen and carbon dioxide with the air through the process of breathing. Oxygen is taken in through the lungs and carbon dioxide is expelled during exhalation. The exchange occurs in the alveoli, which are tiny air sacs in the lungs.
Where does oxygen enter the blood and carbon dioxide leaves it?
Oxygen enters the blood through the alveoli in the lungs during inhalation, where it diffuses into the bloodstream. Carbon dioxide leaves the blood in the same location, diffusing from the blood into the alveoli to be exhaled during exhalation.
How do carbon dioxide water and oxygen move in lungs?
using diffusion and osmosis.
What is the hollow sphere of cells that expand and contract with each breath?
The hollow sphere of cells that expands and contracts with each breath refers to the alveoli, the tiny air sacs in the lungs. Alveoli are crucial for gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be expelled. They are surrounded by a network of capillaries and are essential for efficient respiration. Their elasticity enables them to inflate and deflate during inhalation and exhalation.
What sequence correctly shows the path of carbon dioxide during respiration?
External respiration is the exchange of oxygen and carbon dioxide between the lungs, body and the outside environment; the breathing process known as inhalation and exhalation. Upon inhalation, air enters the body and is warmed, moistened, and filtered as it passes to the alveoli of the lungs. Oxygen diffuses from the alveoli to the bloodstream, then into the red blood cells. Simultaneously, carbon dioxide in the blood is diffused from the blood to the alveoli, and exhalation expels the carbon dioxide from the alveoli.
Which organ in your body enables the carbon dioxide and oxygen content of the blood to change?
The lungs are the organs in your body that enable the exchange of carbon dioxide and oxygen in the blood. During inhalation, oxygen from the air is absorbed into the bloodstream, while carbon dioxide, a waste product, is expelled from the blood into the air during exhalation. This gas exchange occurs in the alveoli, tiny air sacs in the lungs.
