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Top 6 Unusual Breathing Reflexes of the Human Body (2023)

Top 6 Unusual Breathing Reflexes of the Human Body (2023)

by John Landry, BS, RRT | Cardio A&P

Breathing is an essential aspect of our existence, yet it is often taken for granted. However, beyond the basic act of inhaling and exhaling, the human body is capable of performing a range of fascinating and unusual breathing reflexes. From the protective cough...
Is Air a Compound or a Mixture? (Explained)

Is Air a Compound or a Mixture? (Explained)

by John Landry, BS, RRT | Cardio A&P

Air is made up of a complex “recipe” of other elements, which leads to the question: Is air a compound or a mixture? Air is a homogeneous combination of several gases; therefore, it is a mixture, not a compound. This mixture of gas is made up of nitrogen, oxygen,...
What is Dead Space Ventilation? (Explained)

What is Dead Space Ventilation? (Explained)

by John Landry, BS, RRT | Cardio A&P

Dead space ventilation is defined as the volume of ventilated air that does not participate in gas exchange. It’s often referred to as “wasted ventilation,” as the inhaled air is not involved in the exchange of oxygen and carbon dioxide. In other...
Cardiovascular System: Overview and Practice Questions

Cardiovascular System: Overview and Practice Questions

by John Landry, BS, RRT | Cardio A&P

The cardiovascular system is made up of the heart, blood, and blood vessels. Its primary responsibility is to transport oxygenated blood and nutrients to the other organs and tissues within the body. It also transports deoxygenated blood back to the lungs to pick up...
Cardio A&P Final Exam: Study Guide and Practice Questions

Cardio A&P Final Exam: Study Guide and Practice Questions

by Respiratory Therapy Zone | Cardio A&P

Cardiopulmonary anatomy and physiology is a study of the heart and lungs and their respective functions within the body. The heart is responsible for pumping blood through the circulatory system, while the lungs take in oxygen and expel carbon dioxide. This topic is...
Which of the Following is Not Transferred by Alveoli?

Which of the Following is Not Transferred by Alveoli?

by John Landry, BS, RRT | Cardio A&P

Alveoli are tiny air sacs arranged in clusters in the lungs where the gas exchange of oxygen and carbon dioxide molecules takes place. This article will explore what is transferred by alveoli and their role within the lungs. Practice Question Which of the following is...
Respiratory System Review with Practice Questions (2023)

Respiratory System Review with Practice Questions (2023)

by John Landry, BS, RRT | Cardio A&P

The respiratory system refers to the lungs and structures within the body that are involved in the process of breathing. This guide provides a brief overview of the anatomy and physiology of the respiratory system, including the structures that help make breathing...
What is Responsible for Holding the Lungs to the Thorax Wall?

What is Responsible for Holding the Lungs to the Thorax Wall?

by John Landry, BS, RRT | Cardio A&P

The factors responsible for holding the lungs to the thorax wall are surface tension from pleural fluid and negative pressure in the pleural cavity. This article will provide an overview of how the lungs and thorax wall are held together, as well as the role of...
What Internal Conditions Cause Air to Flow Into the Lungs?

What Internal Conditions Cause Air to Flow Into the Lungs?

by John Landry, BS, RRT | Cardio A&P

Under what internal conditions does air tend to flow into the lungs? The simple answer is that air flows into the lungs because of a pressure gradient. But what creates this pressure gradient? In this article, we’ll explore the different internal conditions that...
Ventilation-Perfusion Ratio: What is a V/Q Mismatch?

Ventilation-Perfusion Ratio: What is a V/Q Mismatch?

by John Landry, BS, RRT | Cardio A&P

During respiration, our lungs work to help the body take in oxygen while removing carbon dioxide. This process is known as gas exchange. For it to function properly, the amount of ventilation must match the amount of perfusion in the alveoli of the lungs. In other...
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Medical Disclaimer: The information provided by Respiratory Therapy Zone is for educational and informational purposes only. It should not be used as a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition.