How Much Do You Know About the Respiratory System?


By: Heather Cahill

6 Min Quiz

Image: AnatomyZone

About This Quiz

It's vital to your health and something that you can't live without. Without the work of the respiratory system, people would not survive. When you think of the respiratory system, you probably think about the way you breathe everyday, but do you know what really goes on inside of your body each time you take a breath?

Can you name the parts of the respiratory system? What about the different conditions that affect it and how they do so? Do you know how each of the parts works together and with other systems in the body? Make sure you know the basics, because this quiz will dig deeper than that!

How many facts do you know about the respiratory system? Do you know which part of the system can float? Do you know what the letters "URT" stand for? Do you know what an epiglottis is? Don't be afraid to get technical, you'll get this down to a science!

Breathing may feel like a simple task, but your body does a lot internally to make it happen. If you're an expert on how the body works or you just know a lot about the respiratory system, this one is for you! Breathe in, and out, and in again, then get ready to take this quiz!

Which cells carry oxygen around the body?

Red blood cells carry oxygen to all parts of the body. This is called internal respiration and as the name suggests, it happens internally as the red blood cells distribute the oxygen throughout the body.


What controls your breathing?

The diaphragm controls your breathing. As it expands and contracts, it causes the lungs to push air in and out to make you breathe.


Which of these illnesses affect the respiratory system?

Asthma is an illness that affects the respiratory system. When an episode is taken, the airways tighten and cause the individual to cough and wheeze until treated.


Which two gases pass through the respiratory system?

Oxygen and carbon dioxide pass through the respiratory system. The two gases get exchanged based on whether the person is inhaling or exhaling.


Which of these body parts is part of the respiratory system?

The bronchi is part of the respiratory system. The bronchi carry the air down into the lungs after it leaves the trachea.


What is the average resting respiratory for adults?

The average resting respiratory for adults is 16 - 20 breaths per minute. Anymore or less can indicate deeper problems or ailments in the body.


Is it true or false that the right lung is bigger than the left lung?

This is true. The right lung is larger than the left lung. The left lung is smaller due to the fact that it needs to leave room for the heart, also located on the left.


What controls the temperature of our oxygen?

Sinuses control the temperature of the oxygen that we breathe in. Before it can move on to the lungs, the air passes through the sinus which warms the air up before it continues.


How many lobes does the right lung have?

The right lung has three lobes that supply blood to the organ. In contrast, the left lung has two, but it is also smaller than the right.


What is the air that always stays in your lungs called?

Residual volume is the word used for this. It refers to any air that does not leave your lungs when you exhale. It is important and used to judge the health of your lungs.


What is the average resting respiratory rate for babies?

The average resting respiratory rate for babies is 20 - 40 breaths per minute. As kids get older, their respiratory rate gradually slows down.


Which part of the body can be used to breathe if the nasal cavity cannot be used?

The mouth is used to breathe if your nasal cavity is not able to be used. Breathing through the mouth can be used in situations where your nose is blocked by mucus or other factors.


What is a larynx?

The larynx is where your voice comes from. It is part of the respiratory system, as it is another avenue that the air must pass through to get to the lungs.


What is eupnea?

Eupnea is another word to describe regular breathing. It refers to the correct resting respiratory rate that someone should have based on their age and health.


Is it true or false that we sneeze because there is residue in our lungs?

This is false. A sneeze happens as a result of something irritating the inside of the nose. The rapid release of air is triggered by the brain and it is meant to clear out the irritant.


Which part of the respiratory system exchanges gases?

The alveolus exchanges the gases that are inhaled. When alveoli receive blood with carbon dioxide, it exchanges that blood with oxygen to continue on.


Why is air left over in the airways referred to as "dead space"?

This air is called "dead space" because it hasn't reached the alveoli and stays in the airways. Since it hasn't reached the alveoli, it is unable to be exchanged into a different gas and move on.


When exhaling, what do you lose other than air?

Water is lost when exhaling. The water comes out when we breathe in the form of water vapor and it can add up to around 400 liters per day.


How much air can the adult lung hold?

An adult lung can hold up to 6 liters of air. However, this capacity is not typically reached in normal breathing or from one single breath.


Which part of the respiratory system acts as a filter?

The trachea is the part that acts as a filter. The trachea only allows air to pass through, and stops anything that is not meant to pass into your lungs.


What causes your chest to expand when breathing?

Contrary to how it may seem, lungs do not make your chest expand when you breathe. It is actually the muscles in your chest that cause the movement.


Which part of the respiratory system can float?

Lungs can float in water due to the air pockets that they have. However, if the lungs aren't filled with air, they do not float.


About how many breaths does the average adult take in a day?

In a day, the average adult takes around 22,000 breaths each day. Volumes of around 10,000 liters of air are consumed every day by adults.


What stops particles from being inhaled?

Nose hairs stop the the particles from being inhaled. Did you know that nose hairs actually decrease the risk of developing asthma?


What is epiglottis?

Epiglottis is a piece of cartilage that blocks anything that should not enter the windpipe. If something enters the area that shouldn't, choking is usually induced.


What is anoxia?

Anoxia is a very severe case of hypoxia. When someone is affected by anoxia, they have a complete cutoff of oxygen to their organs.


Is it true or false that women breathe faster than men?

This is true. Women as well as children both breathe faster than men do. However, the difference between the two respiratory rates is not drastically different.


Which part of the respiratory system has no benefit to healthy humans?

Bronchial muscles don't have any benefits for healthy humans. These muscles are also affected when someone contracts bronchitis.


What does your body do when you don't have enough oxygen?

When you don't have enough oxygen, your body makes you yawn. Yawning brings more oxygen inside the body when your body feels that it is lacking it.


Doing what as a young person can stop the growth of your lungs?

Smoking can stop the growth of teen's lungs in addition to many other symptoms and problems. Smoking causes a lot of damage to otherwise healthy lungs.


What does URT stand for?

URT stands for "upper respiratory tract", which refers to the upper organs of the system such as the nose and mouth. In contrast, LRT stands for "lower respiratory tract".


Is it true or false that the diaphragm is the part of the respiratory system that causes hiccups?

This is true. When the diaphragm suddenly moves out of its natural rhythm, it causes the body to get hiccups. Aside from this cause, there are many other factors that can also affect hiccups.


What is hypoxia?

Hypoxia is a lack of oxygen in body tissue. This is a serious condition as it can cause problems in your main organs which can lead to permanent damage.


Which system does the respiratory system work most with?

The circulatory system works most with the respiratory system. Blood circulating through the body needs oxygen from the respiratory system in order to function properly.


Which illness is the most common to affect the respiratory system?

The common cold is the most common illness to affect the respiratory system. The cold can affect the nose as well as the throat, which can affect the regular functions of the respiratory system.


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