Define These Respiratory System Terms Quiz

1. What is the primary function of the nose?

The nose helps in producing tears to keep our eyes moist.

The nose aids in digesting food by releasing digestive enzymes.

The nose is responsible for tasting food and beverages.

The nose filters air by trapping dirt and microbes in the mucus and hairs in our nostrils.The nose also warms the air up prior to the air entering our lungs.

The primary function of the nose is to filter air and warm it up before it reaches the lungs, not to taste food, produce tears, or aid in digesting food.

Explanation

The primary function of the nose is to filter air and warm it up before it reaches the lungs, not to taste food, produce tears, or aid in digesting food.

2. Through which passageways does air travel from the nose towards the lungs?

Air moves from the nose into the pharynx and down the trachea towards the lungs. The pharynx and trachea are both passageways through which air travels.

Air moves from the nose into the esophagus towards the stomach.

Air moves from the nose directly into the lungs.

Air moves from the nose into the liver towards the intestines.

The correct answer specifies the path air takes through the pharynx and trachea towards the lungs. The incorrect answers provide alternatives that do not represent the correct anatomical route of air passage.

Explanation

The correct answer specifies the path air takes through the pharynx and trachea towards the lungs. The incorrect answers provide alternatives that do not represent the correct anatomical route of air passage.

3. What is the larynx also known as?

The larynx is responsible for smelling scents.

The larynx is a part of the digestive system.

The larynx, or voicebox, sits on top of the trachea.It is also known as the Adam's apple.

The larynx is located in the abdomen.

The larynx, commonly referred to as the voicebox, is a vital part of the respiratory system responsible for producing sound.

Explanation

The larynx, commonly referred to as the voicebox, is a vital part of the respiratory system responsible for producing sound.

4. What is the function of the bronchi?

Producing insulin in the pancreas

Filtering blood in the lungs

The bronchi (bronchus is singular) bring the air from the trachea into the lungs.The bronchi branch into smaller tubes called bronchioles.

Regulating heartbeat in the heart

The correct answer explains the role of the bronchi in the respiratory system, specifically in the process of bringing air into the lungs. The incorrect answers do not relate to the function or location of the bronchi, therefore they are not correct choices.

Explanation

The correct answer explains the role of the bronchi in the respiratory system, specifically in the process of bringing air into the lungs. The incorrect answers do not relate to the function or location of the bronchi, therefore they are not correct choices.

5. What are alveoli?

Structures in the brain responsible for storing memories

A type of muscle found in the legs

In the lungs, thin-walled air sacs, called alveoli, extend from the bronchioles and are wrapped in capillaries.Oxygen from the lungs enters the blood stream through the alveoli and capillaries.Carbon dioxide leaves the blood stream and enters the lungs through the same capillaries and alveoli.

Cells responsible for producing insulin in the pancreas

Alveoli are actually thin-walled air sacs in the lungs responsible for gas exchange during respiration.

Explanation

Alveoli are actually thin-walled air sacs in the lungs responsible for gas exchange during respiration.

6. What is the function of the diaphragm in the respiratory system?

The diaphragm is a waste product produced during respiration.

The diaphragm is a muscle. When it contracts (moves down), the lungs expand pulling air into the lungs.When it relaxes (moves up), air is pushed out.

The diaphragm is a type of medication used to treat lung infections.

The diaphragm is a bone that protects the lungs.

The diaphragm is actually a muscle that plays a crucial role in the process of breathing by expanding and contracting to facilitate inhalation and exhalation.

Explanation

The diaphragm is actually a muscle that plays a crucial role in the process of breathing by expanding and contracting to facilitate inhalation and exhalation.

7. What is the function of the Intercostal Muscles?

These muscles are responsible for vision.

These muscles are attached in between the ribs. These muscles are used during inhalation as they lift the ribcage upwards to create space in the chest cavity for lungs to expand.

These muscles help in digestion process.

These muscles assist in walking and running.

Intercostal muscles are specifically involved in the breathing process by aiding in the expansion of the chest cavity during inhalation.

Explanation

Intercostal muscles are specifically involved in the breathing process by aiding in the expansion of the chest cavity during inhalation.

8. What is inspiration in terms of respiration?

Refers to inhalation, External intercostal muscles contract pulling the lungs up. Space is created in the lungs, which means the pressure inside the lungs drops. This allows air to be taken in and enter the lungs. (Pressure outside the lungs is greater than the pressure inside the lungs).

Ventilation is the movement of air in and out of the lungs through the process of breathing.

Respiration is the process of breathing air into and out of the lungs.

Expiration is the process of air leaving the lungs through exhalation.

Inspiration specifically refers to the inhalation process during respiration, where external intercostal muscles contract to create space for air entry into the lungs.

Explanation

Inspiration specifically refers to the inhalation process during respiration, where external intercostal muscles contract to create space for air entry into the lungs.

9. What is expiration in the context of breathing?

Refers to the expansion of the ribcage

Refers to exhalation External intercostal muscles relax and internal intercostal muscle contract, causing the ribcage to become smaller again.Space inside the lungs decreases, which increase the pressure of air inside the lungs. This causes the air inside the lungs to be expelled. (Pressure inside the lungs is greater than pressure of air outside of the lungs)

Refers to inhalation

Refers to the pressure outside the lungs increase