RESPIRATORY SYSTEM
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The respiratory system allows air to enter the nose and pass to the pharynx and larynx before entering the trachea which divides into bronchi. The bronchi further divide into bronchioles and alveoli, resembling a bunch of grapes. Over 400 million alveoli exchange oxygen and carbon dioxide with blood vessels. The lungs appear cone-shaped to fit in the chest cavity, with the left lung smaller to make room for the heart below. Lungs hold around 3.3 liters of air and constantly inflate and deflate through breathing day and night.
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Pakistan’s Neurosurgery Students Society - PNSS
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Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
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Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
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The human respiratory system includes the nose, mouth, pharynx, larynx, trachea, bronchi, bronchioles, and lungs. Air enters through the nose or mouth and is warmed and filtered before passing to the pharynx and trachea. The trachea divides into bronchi that branch into smaller bronchioles and terminate in alveoli in the lungs. The alveoli are surrounded by capillaries where oxygen diffuses into the bloodstream and carbon dioxide diffuses out. Breathing is facilitated by the diaphragm muscle. The respiratory system works to oxygenate the blood and remove carbon dioxide
The respiratory system
This document discusses the process of respiration and the organs involved. It defines breathing as the movement of air into and out of the lungs, while respiration is the cellular reaction where glucose and oxygen combine to produce energy. It describes the key organs - the pharynx, larynx, trachea, bronchi, lungs and alveoli - and their functions in the respiration process, which involves the exchange of oxygen and carbon dioxide between the alveoli and capillaries. The document also explains that breathing is controlled by the brain to regulate carbon dioxide levels and provide oxygen for cellular respiration throughout the body.
Anatomy/Physiology Slideshow: The Respiratory System
The respiratory system brings air into the body during breathing. It includes the nose, throat, trachea, and lungs. In the lungs, oxygen from the air is transferred to the bloodstream and distributed to cells throughout the body. The respiratory system has several parts - air enters through the nose and passes through the pharynx and larynx before reaching the trachea. The trachea divides into bronchi that lead into the lungs and branch into smaller bronchioles and alveoli, where oxygen and carbon dioxide are exchanged between the blood and air.
Respiration in animals.
Respiration.
Types of respiration.
Various modes of respiration in animals.
Human respiratory system.
Upper respiratory tract.
Nose.
Pharynx.
Larynx.
Lower respiratory tract.
Trachea.
Bronchi and bronchioles.
Lungs.
Mechanism of respiration.
Exchange of gases.
Functions of respiratory system.
Respiratory System
The respiratory system is made up of organs that help oxygen enter the body and carbon dioxide leave the bloodstream. Air enters through the nose or mouth and passes through the pharynx and trachea into the lungs. In the lungs, the trachea branches into bronchi which branch further into bronchioles and tiny air sacs called alveoli. The alveoli are surrounded by capillaries and it is at this site that oxygen diffuses into the bloodstream and carbon dioxide diffuses out through very thin cellular walls. The diaphragm and rib muscles help draw air in and out of the lungs during breathing.
Anatomy of respiratory system.
The respiratory system is responsible for gas exchange between the circulatory system and the outside world. Air enters through the nasal cavity and pharynx, then travels through the trachea and bronchi into the bronchioles and alveoli in the lungs. The lungs are divided into lobes and contain millions of alveoli which facilitate gas exchange with blood capillaries. During inhalation, intercostal muscles and the diaphragm expand the lungs to create negative pressure and draw in air. Exhalation is passive as the lungs recoil.
Respiratory
The respiratory system brings oxygen into the body and removes carbon dioxide and other gases. Air passes through the throat and larynx into the trachea, guarded by the epiglottis to prevent choking. The trachea branches into bronchi that divide further into smaller tubes ending in alveoli, tiny sacs that facilitate gas exchange between the blood and inhaled air in the lungs. The lungs, located in the chest cavity, are the size of footballs and the diaphragm forms the floor of the cavity.
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RESPIRATORY SYSTEM
- 3. Here is another miracle system. Air enters your nose and passes down to that same pharynx again. But this time, the swallow mechanism is not in operation, so the air goes directly downward into the larynx, past your voice box, and into the trachea, which then divides into the two bronchi, which then lead through the bronchioles into tiny air sacs called atria. Think of two trees with their branches continually rebranching until finally they end-in grapes! That is the appearance of the bronchi, bronchioles, and atria. Tiny projections, called alveoli, protrude outward from each grape- like atrium into the lung. It all does look very much like a bunch of grapes! The plan is to exchange oxygen for carbon dioxide-as much as possible and as quickly as possible. There are over 400 million alveoli; each one is closely connected with blood and lymph vessels, nerves, and connective tissue.
- 4. That is what, on the inside, your lungs look like; From the outside, the lungs appear to be two cone-shaped organs, nicely designed to fit the space in your chest. Your left one is not as large, in order to make room for the heart just below it. Your lungs hold about 31/z quarts [3.3 liters] of air, and are remarkably like air bellows, partly filling, partly emptying, partly filling, partly emptying; this goes on constantly, night and day. It should not take long for such action to wear a hole in the side of the lungs, but instead they are wrapped inside the pleural cavity. Moist fluid is exuded by the walls of the pleural membrane, which provides a slippery surface for the lungs to move against. Please remember that, throughout this exploration, you are observing only the barest outline of the body systems. It is similar to lifting the top off the central processing unit of a home computer, letting you gaze within at the electronic boxes and cards neatly stacked inside,-and then concluding that you understood the complexity of a computer! Several lengthy books could easily be written about each italicized word in this article.