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What are small air sacs in the lungs where many capillaries exchange carbon dioxide for oxygen taken into the body called?




This question is part of multiple choice quiz on Respiratory System Quiz
Asked by Paxalles, Last updated: Jul 07, 2020

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3 Answers

R. Barnes

Always excited to learn and talk about new topics

R. Barnes, Analyst, PhD, Clinton

Answered Jun 03, 2019

Alveoli are small air sacs in the lungs where many capillaries exchange carbon dioxide for oxygen taken into the body. They are the basic unit of ventilation. Alveoli are found in the respiratory zones of the lungs. They are located after the alveoli ducts and alveolar sacs.

The gas exchange surface is the alveolar membrane. The capillaries are wrapped around each alveolus, creating a mesh appearance. Deoxygenated blood, which is rich in carbon dioxide from the body is pumped through the capillaries of the alveoli, and through diffusion, there is an exchange of gases (oxygen diffuse to the blood and carbon dioxide to the alveoli).

 

W. Wright

Let's see how far my knowledge stretches

W. Wright, Biology student, Biology student, Astoria

Answered Apr 24, 2019

The alveoli are known to be the sacs that will help pass the oxygen from one place to another. It is through the help of hemoglobin that will allow the air to pass through the blood vessels. Simultaneously, the carbon dioxide will come from the blood vessels and will go to the air sacs.

This exchange will make sure that respiration will happen according to plan. Each lung is known to have about 30 million air sacs that will make sure that carbon dioxide will be removed from the system and will be released into the air. The alveoli may look like a grape but this makes sure that the purpose happens the way that it is planned.

 

paxalles

Paxalles

Answered Aug 28, 2018

Alveoli
 

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