how are lungs designed in human beings to maximize the exchange of gases list three features?
478071
['they give the lungs a really big surface area.', 'they have moist, thin walls (just one cell thick)', 'they have a lot of tiny blood vessels called capillaries.']
1474459
[' thin walls.', ' a moist inner surface.', ' a huge combined surface area.', ' a rich blood supply- each alveolus is sounded by capillaries.']
958975
[' the structures through which gas exchange occurs must be thin so the diffusion can occur easily.', ' this membrane must be kept moist. ... ', ' to ensure enough exchange there must be a rich blood supply present ( 760 square feet)']
99879
["Nose and Nasal Cavity. The nose and nasal cavity form the main external opening for the respiratory system and are the first section of the body's airway—the respiratory tract through which air moves. ... ", 'Mouth. ... ', 'Pharynx. ... ', 'Larynx. ... ', 'Trachea. ... ', 'Bronchi and Bronchioles. ... ', 'Lungs. ... ', 'Muscles of Respiration.']
418937
Your lungs deliver oxygen and remove carbon dioxide from your blood in a process called gas exchange. Gas exchange happens in the capillaries surrounding the alveoli, where the oxygen that is breathed in enters the circulatory system and carbon dioxide in the blood is released to the lungs and then breathed out.
1423763
['thin walls.', 'a moist inner surface.', 'a huge combined surface area.', 'a rich blood supply- each alveolus is sounded by capillaries.']
22289
The lungs function as an organ for ventilation and gas-exchange. ... Early changes in lung architectures may be detected with maximal mid-expiratory flow (MMEF), a spirometric parameter reflecting airflow of large and small airways13,14. Compared with healthy subjects, MMEF was significantly lower in bronchiectasis4,15.
1165075
['They are moist to prevent the cells from drying and to allow gases to dissolve;', 'They have a large surface area , so that a lot of gas can diffuse across at the same time;', 'They have a high concentration gradient - maintained by the movement of air & blood.']
1069715
Brings air to body temperature and moisturizes it to the humidity level your body needs. Delivers oxygen to the cells in your body. Removes waste gases, including carbon dioxide, from the body when you exhale. Protects your airways from harmful substances and irritants.
530743
['respiratory system. system responsible for taking in oxygen and releasing carbon dioxide using the lungs.', 'nose. the organ of smell and entrance to the respiratory tract.', 'pharynx. throat; passageway for food to the esophagus and air to the larynx.', 'larynx. ... ', 'trachea. ... ', 'bronchi. ... ', 'bronchioles. ... ', 'brochus.']
215200
The alveoli are adapted to make gas exchange in lungs happen easily and efficiently. Here are some features of the alveoli that allow this: they give the lungs a really big surface area. they have moist, thin walls (just one cell thick)
672953
['Major function of the respiratory system. is to supply the body with oxygen and dispose carbon dioxide but because it moves air, it also functions in speech and smell.', 'Pulmonary ventilation. moving air into and out of the lungs (breathing)', 'External respiration. ... ', 'Transport. ... ', 'Internal respiration.']
370366
The primary organs of the respiratory system are the lungs, which carry out this exchange of gases as we breathe. The lungs work with the circulatory system to pump oxygen-rich blood to all cells in the body.
466886
The human respiratory system can be divided into two parts. The conducting portion: a series of passageways that carry air into and out of the gas-exchange portion of the respiratory system. The gas-exchange portion: where gases are exchanged with the blood in tiny sacs within the lungs.
367125
The air sacs of the lungs are lined with simple squamous epithelium that serves as a thin, efficient membrane for gas exchange between air and blood.
495329
Gas exchange: The primary function of the lungs involving the transfer of oxygen from inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air.
332879
The chest wall consists of the muscles of respiration—such as the diaphragm, the intercostal muscles, and the abdominal muscles—and the rib cage. The functions of the respiratory system include gas exchange, acid-base balance, phonation, pulmonary defense and metabolism, and the handling of bioactive materials.