Human Body Systems

Lungs MCQs with Answers

Welcome to the Lungs MCQs with Answers. In this post, we have shared Lungs Online Test for different competitive exams. Find practice Lungs Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Lungs.

The lungs are two spongy, air-filled organs placed side by side on the left and right sides of the chest, or thorax. They take much room inside the rib cage and lie between another organ separated by a muscular sheet, called the diaphragm. Lungs form an essential part of respiration as they provide oxygen to blood and remove carbon dioxide from the body. Gas exchange is one of the primary roles of the lungs. The alveoli represent the tiny air sacs of the lung and modify this process of gas exchange concerning the blood.

Air passed down the trachea into bronchial tubes splits further on either side into two and then continues to subdivide into lesser bronchioles, which have developed into masses of tiny alveoli. This is where the oxygen to be utilized by the body diffuses into the bloodstream, carbon dioxide dissolved in the water of the body fluids leaving through exhaling.

Healthy lungs ensure general health. Smoking, air pollutants, and respiratory infections very fast compromise the function of the lungs and cause diseases like COPD, asthma, and lung carcinoma. Healthy living in the form of proper exercise, nutrition food, and avoidance of injurious agents would ensure maximal lung functions.

Lungs Online Quiz

By presenting 3 options to choose from, Lungs Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Lungs Questions and Answers and click over the correct answer.

  • Test Name: Lungs MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quiz, simply click on question and comment below that question, so that we can update the answer in the quiz section.

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Lungs MCQs

Lungs

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1 / 40

The lungs are located in which cavity of the body?

2 / 40

The function of the bronchial arteries is to supply?

3 / 40

The respiratory system includes all of the following structures except?

4 / 40

The main airway that enters each lung is called?

5 / 40

Which gas is primarily transported from the lungs to the tissues by hemoglobin?

6 / 40

What is the term for the double-layered membrane surrounding the lungs?

7 / 40

The left lung has an indentation to accommodate which organ?

8 / 40

The respiratory system works closely with which other system to distribute oxygen?

9 / 40

The lungs are protected by a bony structure called the?

10 / 40

The diaphragm contracts during which phase of respiration?

11 / 40

The total lung capacity is the sum of all of the following except?

12 / 40

What is the primary function of the lungs?

13 / 40

How many lobes does the right lung have?

14 / 40

The exchange of gases in the lungs occurs across which structure?

15 / 40

Which structure carries air into the lungs?

16 / 40

The primary bronchi divide into smaller airways called?

17 / 40

What is the name of the small air sacs in the lungs?

18 / 40

Oxygenated blood is returned to the heart from the lungs via which vessels?

19 / 40

The trachea divides into two main bronchi at which level of the vertebral column?

20 / 40

What structure prevents the collapse of the trachea?

21 / 40

Which part of the lung has the highest oxygen concentration during gas exchange?

22 / 40

Which type of epithelial tissue lines the alveoli?

23 / 40

The process of moving air in and out of the lungs is called?

24 / 40

Which cells in the alveoli produce surfactant?

25 / 40

The lungs receive deoxygenated blood from which blood vessels?

26 / 40

The alveoli are the site of which process?

27 / 40

Which muscle plays a crucial role in the process of breathing?

28 / 40

The main function of the cilia in the respiratory tract is to?

29 / 40

The right lung is shorter than the left lung due to which organ's presence?

30 / 40

The pleura is a membrane that covers which organ?

31 / 40

Which type of blood vessel surrounds the alveoli?

32 / 40

Which part of the brain regulates breathing?

33 / 40

What substance reduces surface tension in the alveoli?

34 / 40

During exhalation, the diaphragm moves in which direction?

35 / 40

The space between the lungs is known as the?

36 / 40

Which part of the respiratory system is responsible for voice production?

37 / 40

What is the primary muscle involved in inhalation?

38 / 40

Which part of the lung is most affected by inhaled foreign particles?

39 / 40

How many lobes does the left lung have?

40 / 40

What is the flap that covers the trachea during swallowing to prevent food from entering?

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Lungs Flashcards

The lungs are located in which cavity of the body?

Thoracic cavity

What is the primary function of the lungs?

Gas exchange

Which structure carries air into the lungs?

Trachea

How many lobes does the right lung have?

Three

How many lobes does the left lung have?

Two

The alveoli are the site of which process?

Gas exchange

What substance reduces surface tension in the alveoli?

Surfactant

Which muscle plays a crucial role in the process of breathing?

Diaphragm

The exchange of gases in the lungs occurs across which structure?

Alveolar-capillary membrane

The pleura is a membrane that covers which organ?

Lungs

The right lung is shorter than the left lung due to which organ's presence?

Liver

What is the name of the small air sacs in the lungs?

Alveoli

Which type of blood vessel surrounds the alveoli?

Capillaries

The left lung has an indentation to accommodate which organ?

Heart

Which part of the brain regulates breathing?

Medulla oblongata

The main airway that enters each lung is called?

Bronchus

What is the primary muscle involved in inhalation?

Diaphragm

Oxygenated blood is returned to the heart from the lungs via which vessels?

Pulmonary veins

Which cells in the alveoli produce surfactant?

Type II alveolar cells

What is the term for the double-layered membrane surrounding the lungs?

Pleura

During exhalation, the diaphragm moves in which direction?

Upward

The primary bronchi divide into smaller airways called?

Bronchioles

The main function of the cilia in the respiratory tract is to?

Trap and move particles out

The space between the lungs is known as the?

Mediastinum

The diaphragm contracts during which phase of respiration?

Inhalation

The lungs receive deoxygenated blood from which blood vessels?

Pulmonary arteries

The total lung capacity is the sum of all of the following except?

Residual volume

Which part of the respiratory system is responsible for voice production?

Larynx

Which type of epithelial tissue lines the alveoli?

Simple squamous epithelium

The lungs are protected by a bony structure called the?

Rib cage

Which gas is primarily transported from the lungs to the tissues by hemoglobin?

Oxygen

The respiratory system includes all of the following structures except?

Esophagus

Which part of the lung is most affected by inhaled foreign particles?

Right lower lobe

The respiratory system works closely with which other system to distribute oxygen?

Circulatory system

The process of moving air in and out of the lungs is called?

Ventilation

Which part of the lung has the highest oxygen concentration during gas exchange?

Alveoli

What is the flap that covers the trachea during swallowing to prevent food from entering?

Epiglottis

The function of the bronchial arteries is to supply?

Oxygenated blood to lung tissue

What structure prevents the collapse of the trachea?

Cartilaginous rings

The trachea divides into two main bronchi at which level of the vertebral column?

T4-T5

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