Question

Which of the following BEST describes what alveoli are? A. They are the smallest tubes in the respiratory system. B. They have a small amount of surface area. C. They are found on the end of bronchioles. D. They are comprised of millions of cells. Please select the best answer from the choices provided.

Answer 1

Answer:

C. Eles são encontrados no final dos bronquíolos.

Explanation:

The pulmonary alveoli are tiny air sacs, present in the lungs, surrounded by blood capillaries and a thin membrane. They are located where the thin branches of bronchioles end. That is, they are found at the end of the bronchioles.

The alveoli can be presented alone or in groups, forming the so-called alveolar bags. In each lung there are millions of alveoli. They are responsible for the spongy aspect of the lungs.

The main function of pulmonary alveoli is to be the place where gas exchange between air and blood occurs, hematosis.

Answer 2

Alveoli is the smallest part of the respiratory system. The best description about it is “they are the smallest tubes in the respiratory system”.  

EXPLANATION

Alveoli’s function is to exchange oxygen and carbon dioxide. Thus, it becomes an important part of the respiratory system. Alveoli’s shape is like tiny balloon-shaped. Its location is at the very end of the respiratory tree. It is arranged in clusters which are throughout the human’s lungs. Alveoli also can be said as the endpoint of the respiratory system. Without alveoli, a human cannot breathe normally.  

Due to the important function of alveoli, here are some medical conditions that people have to be aware of:

• Emphysema

• Pneumonia

• Tuberculosis

• Bronchioloalveolar carcinoma

• Acute respiratory distress syndrome

• Respiratory distress syndrome

• Pulmonary edema  

We also have to be aware of the effect of tobacco and smoking because these things can affect the function of alveoli. Tobacco and smoking cause the damage, right down to the molecular level. It will disrupt our body’s ability to repair itself. In a serious condition, it will lead to an infection or trauma. The effect of tobacco and smoking also cause a risk to human’s lungs. The damage of the alveoli will cause human’s lungs exposed to the toxic fumes.

LEARN MORE

If you’re interested in learning more about this topic, we recommend you to also take a look at the following questions:

1. Which sequence correctly shows the path of carbon dioxide during respiration? brainly.com/question/11954250

2. What is the correct order from the largest structure to smallest within the lungs? brainly.com/question/1621897  

KEYWORDS: Alveoli, lungs

Subject: Health

Class: 10-12

Subchapter: Alveoli