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14. BREATHING AND EXCHANGE OF GASES

The chapter details the respiratory system's structure and functioning, emphasizing the importance of gas exchange. It covers breathing mechanics, gas transport in blood, and the regulation of respiration. Additionally, various disorders affecting the respiratory system are discussed, highlighting the significance of maintaining respiratory health.

Sections

  • 14

    Breathing And Exchange Of Gases

    This section outlines the respiratory organs and mechanisms in humans and explains the process of gas exchange in respiration.

  • 14.1

    Respiratory Organs

    The section discusses various respiratory organs across different organisms and details the human respiratory system.

  • 14.1.1

    Human Respiratory System

    The human respiratory system comprises various organs that facilitate breathing, gas exchange, and oxygen transport.

  • 14.2

    Mechanism Of Breathing

    Breathing involves the process of inhaling oxygen and exhaling carbon dioxide through a pressure gradient created by respiratory muscles.

  • 14.2.1

    Respiratory Volumes And Capacities

    This section introduces the various respiratory volumes and capacities in human physiology.

  • 14.3

    Exchange Of Gases

    The exchange of gases in the human respiratory system primarily occurs in the alveoli, where oxygen is absorbed into the blood and carbon dioxide is released.

  • 14.4

    Transport Of Gases

    Transport of gases in the human body primarily involves the movement of oxygen and carbon dioxide through the blood, facilitated by hemoglobin.

  • 14.4.1

    Transport Of Oxygen

    This section discusses how oxygen is transported in the human body primarily through hemoglobin in red blood cells.

  • 14.4.2

    Transport Of Carbon Dioxide

    This section describes how carbon dioxide is transported in the body, highlighting the significance of hemoglobin and biochemical processes involved.

  • 14.5

    Regulation Of Respiration

    The regulation of respiration in humans is primarily controlled by the brain's respiratory rhythm center and is influenced by various chemical factors.

  • 14.6

    Disorders Of Respiratory System

    This section discusses various disorders affecting the respiratory system, including asthma, emphysema, and occupational respiratory ailments.

  • 14.7

    Summary

    This section summarizes the respiratory process, highlighting the roles of ventilation and gas exchange in the human body.

  • 14.8

    Exercises

    This section offers various exercises to test the understanding of human respiration and its related concepts.

Class Notes

Memorization

What we have learnt

  • Oxygen is essential for cel...
  • The respiratory system cons...
  • Breathing mechanisms create...

Final Test

Revision Tests

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