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Q: The respiratory system contains which of the following structures and organs? A. blood, blood vessels, heart B. tonsils, thymus, spleen, red bone marrow C. lymph nodes, lymph vessels
D. lungs, respiratory passages, diaphragm
A: D. lungs, respiratory passages, diaphragm
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User: The respiratory system contains which of the following structures and organs? A. blood, blood vessels, heart B. tonsils, thymus, spleen, red bone marrow C. lymph nodes, lymph vessels D. lungs, respiratory passages, diaphragm

Weegy: D. lungs, respiratory passages, diaphragm
danimai|Points 973|

User: Which structure is altered by emphysema? A. nasal cavity B. oral cavity C. esophagus D. bronchiole

Weegy: D. bronchiole ......... Emphysema is a long-term, progressive disease of the lungs that primarily causes shortness of breath. In people with emphysema, the tissues necessary to support the physical shape and function of the lungs are destroyed. [ [ It is included in a group of diseases called chronic obstructive pulmonary disease or COPD (pulmonary refers to the lungs). ] ]
shifa saleheen|Points 9625|

User: The respiratory disease that cause destruction of alveoli and the elastic fibers in the lungs is known as A. emphysema. B. asthma. C. tuberculosis. D. bronchitis.

Weegy: B. asthma
cyssuss|Points 2435|

User: A respiratory disease caused from smoking is A. asthma. B. emphysema. C. bronchitis. D. tuberculosis.

Weegy: B. emphysema
wackyjacky85|Points 30|

User: The respiratory system depends on the nervous system for signals to A. coordinate the muscles that control breathing. B. exchange gases with the circulatory system. C. enhance the amount of available oxygen in the lungs. D. release enzymes to increase the exchange of gases.

Weegy: D. coordinate the muscles that control breathing
danimai|Points 973|

User: The large flat muscle that moves up and down in order to bring air in and out of the lungs is called the A. trachea. B. epiglottis. C. diaphragm. D. larynx. The large flat muscle that moves up and down in order to bring air in and out of the lungs is called the A. trachea. B. epiglottis. C. diaphragm. D. larynx.

Weegy: Beneath the lungs is the diaphragm (dy-uh-fram), a dome-shaped muscle that works with your lungs to allow you to inhale (breathe in) and exhale (breathe out) air. The answer is C: Diaphragm.
Masha|Points 1147|

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Asked 4/30/2012 11:46:14 AM
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