Respiratory Gas Transport

Oxygen is absorbed, and carbon dioxide is expelled during gas exchange in the lungs. Oxygenated blood is transported from the lungs to the body’s tissues. Deoxygenated blood needs to be returned to the lungs for the cycle to continue. The cardiovascular system, including blood vessels and the heart, plays a crucial role in the transportation of gases. Blood carrying oxygen leaves the lungs and flows into the heart through the pulmonary veins. From the left atrium, oxygenated blood is pumped into the left ventricle of the heart. The left ventricle then ejects oxygenated blood into the aorta and its corresponding branches, facilitating distribution to the rest of the body.

Mechanism of BreathingFAQ’s – Mechanism of Breathing

Mechanism of Breathing is the process by which organisms inhale oxygen and release carbon dioxide. It involves the inhalation of air, where the diaphragm and intercostal muscles expand the chest cavity, allowing air to fill the lungs. During exhalation, the muscles relax, decreasing lung volume and expelling carbon dioxide. The respiratory center in the brainstem regulates this rhythmic cycle. The gaseous exchange takes place in the alveoli, where oxygen diffuses into the bloodstream, and carbon dioxide is released for removal.

Intrapleural breathing helps in maintaining respiratory efficiency. This rhythmic process ensures a continuous exchange of gases necessary for cellular function. In this article, we will discuss breathing, the mechanism of breathing, and Intrapleular breathing in detail.

Table of Content

  • What is Breathing?
  • Mechanism of Breathing 
  • Mechanism of Respiration
  • Intrapleural Breathing
  • Respiratory Gas Transport
  • Key Points on Mechanism of Breathing

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What is Breathing?

Breathing or respiration, is a process that involves the process of inhalation and exhalation of gases. It takes place in the lungs, where gaseous exchange occurs. Inhalation starts with the contraction of the diaphragm and intercostal muscles, which expands the chest cavity. Due to this, the pressure inside the lung decreases causing air to rush in. Oxygen is then transported to tissues through the bloodstream, while carbon dioxide, a metabolic waste product, is carried back to the lungs. Exhalation involves the relaxation of muscles, reducing lung volume, and expelling carbon dioxide....

Mechanism of Breathing

The mechanism of breathing involves inhalation and exhalationo. The lung volume changes and allow the exchange of gases to support cellular function. The mechanism of breathing takes place in the following steps:...

Mechanism of Respiration

The mechanism of respiration involves both breathing and gas exchange at the cellular level. The gaseous exchange take place at the surface of alveoli by the process of diffusion. It depends upon the pressure differences between blood and tissues. The mechanism of breathing has already been explained above. We will discuss the steps involved in the exchange of gases....

Intrapleural Breathing

Intrapleural breathing is an important part of the respiratory mechanism, and is used to refer to the pressure that is present in the space between the pleura and the lungs. As the diaphragm and external intercostal muscles contract during inhalation, the thoracic cavity expands, creating a lower pressure in the intrapleural space. This negative intrapleural pressure helps to uphold the adherence between the visceral and parietal pleurae, preventing lung collapse and maintaining optimal lung expansion. The lowered intrapleural pressure help in expanding the lungs, that allow the intake of air for oxygen exchange....

Respiratory Gas Transport

Oxygen is absorbed, and carbon dioxide is expelled during gas exchange in the lungs. Oxygenated blood is transported from the lungs to the body’s tissues. Deoxygenated blood needs to be returned to the lungs for the cycle to continue. The cardiovascular system, including blood vessels and the heart, plays a crucial role in the transportation of gases. Blood carrying oxygen leaves the lungs and flows into the heart through the pulmonary veins. From the left atrium, oxygenated blood is pumped into the left ventricle of the heart. The left ventricle then ejects oxygenated blood into the aorta and its corresponding branches, facilitating distribution to the rest of the body....

Key Points on Mechanism of Breathing

The key points on mechanism of breathing are:...