Respiratory system
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The document discusses the key parts and anatomy of the respiratory system. It explains that lungs are located on either side of the thoracic cavity and are protected by a double-layered membrane called the pleura. The lungs contain many alveoli, which are balloon-like structures that help exchange gases by increasing surface area as they are surrounded by blood capillaries.
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1. respiratory system
The document describes the structure and function of the respiratory system. It details the major components including the nasal passages, pharynx, larynx, trachea, bronchi, bronchioles, respiratory bronchioles, alveolar ducts, and alveoli. It explains how air moves through the respiratory tree from the trachea down to the alveoli where gas exchange occurs. It also discusses cellular respiration and the role of oxygen and carbon dioxide exchange between the alveoli and blood in the pulmonary capillaries. Finally, it covers the mechanics of ventilation including atmospheric pressure, intra-alveolar pressure, intra-pleural pressure, and the importance of transmural pressure gradients.
Physiological anatomy of respiratory system
The respiratory system has three main functions: external respiration, the transport of gases, and internal respiration. External respiration involves extracting carbon dioxide from tissues and discharging it into the atmosphere. The air passage divides 23 times between the trachea and alveolar sacs. It can be divided into two zones: the conducting zone where no gas exchange occurs, and the respiratory zone where gas exchange takes place in the alveoli. The lungs also have non-respiratory functions like humidifying and warming air, resisting infection, and filtering the pulmonary circulation.
The human respiratory system
The human respiratory system consists of the nasal cavity, which humidifies and filters air, the windpipe that transports air to the lungs, and the bronchi that divide the windpipe and conduct air into the lungs. The lungs are essential organs that transport oxygen into the bloodstream and release carbon dioxide. Air is composed primarily of nitrogen and oxygen, with around 1% water vapor.
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1. respiratory system
The document describes the structure and function of the respiratory system. It details the major components including the nasal passages, pharynx, larynx, trachea, bronchi, bronchioles, respiratory bronchioles, alveolar ducts, and alveoli. It explains how air moves through the respiratory tree from the trachea down to the alveoli where gas exchange occurs. It also discusses cellular respiration and the role of oxygen and carbon dioxide exchange between the alveoli and blood in the pulmonary capillaries. Finally, it covers the mechanics of ventilation including atmospheric pressure, intra-alveolar pressure, intra-pleural pressure, and the importance of transmural pressure gradients.
Physiological anatomy of respiratory system
The respiratory system has three main functions: external respiration, the transport of gases, and internal respiration. External respiration involves extracting carbon dioxide from tissues and discharging it into the atmosphere. The air passage divides 23 times between the trachea and alveolar sacs. It can be divided into two zones: the conducting zone where no gas exchange occurs, and the respiratory zone where gas exchange takes place in the alveoli. The lungs also have non-respiratory functions like humidifying and warming air, resisting infection, and filtering the pulmonary circulation.
The human respiratory system
The human respiratory system consists of the nasal cavity, which humidifies and filters air, the windpipe that transports air to the lungs, and the bronchi that divide the windpipe and conduct air into the lungs. The lungs are essential organs that transport oxygen into the bloodstream and release carbon dioxide. Air is composed primarily of nitrogen and oxygen, with around 1% water vapor.
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Respiratory system
- 2. PARTS OF THE RESPIRATORY SYSTEM
- 5. POSITION OF LUNGS Lungs are located on either side of the thoracic cavity.
- 7. PLEURA
- 8. * Lungs are protected inside a double layered membrane PLEURA. * PLEURAL FLUID is seen between the two layers of pleura.
- 10. * Lungs are full of ALVEOLI. *Alveoli are balloon like structures seen in the lungs. * Alveoli helps in the exchange of gases
- 12. * Alveoli are surrounded by blood capillaries. * Alveoli increases the surface area for exchange of gases.
- 13. THANK YOU