EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Describe the lungs:
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Thick walls filled with tiny air sacs
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Thin flexible walls filled with cartilage and air sacs
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Thin, soft, and flexible-they are filled with tiny air sacs
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Football shaped organs that have thick inflexible walls
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Explanation:
Detailed explanation-1: -Complete answer: Air sacs are the internal compartment filled with air to facilitate internal air. Vertebrates have air sacs present in different body parts & perform various functions. Air sacs provide large surface area for gaseous exchange and increase the respiratory efficiency of the organism.
Detailed explanation-2: -The main function of the lungs is the process of gas exchange called respiration (or breathing). In respiration, oxygen from incoming air enters the blood, and carbon dioxide, a waste gas from the metabolism, leaves the blood.
There is 1 question to complete.