Respiratory system
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The respiratory system allows for gas exchange between the external environment and tissues of the body. It involves two phases - external respiration where gases are exchanged between the atmosphere and blood, and internal respiration where gases are exchanged between the blood and body tissues. The main organs involved are the nose, nasal cavity, larynx, trachea, bronchi, bronchioles and alveoli in the lungs. The lungs and respiratory tract work together to inhale oxygen and exhale carbon dioxide in a cyclic breathing process.
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The respiratory system allows for gas exchange in the body. It begins with the nostrils, where air enters and exits the nasal cavity to be warmed. The pharynx and larynx allow air to pass to the trachea and then bronchi, where air flows into the lungs. The lungs, located in the chest, have lobes and facilitate breathing, respiration, and protection from infection. Inhalation draws oxygen into the lungs through muscle contraction and exhalation removes carbon dioxide as a waste product.
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1 GNM - Anatomy Unit - 6 Respiratory System.pptx
By: M. Thiru murugan
Unit – 6:
The structure and functions of respiratory organs
The physiology of respiration
Characteristics of normal respiration and deviation
Respiratory system
The respiratory system is the one of vital organs that involve in respiration
Play important role in the intake and exchange of O2 and CO2 .
The respiratory system performs two major tasks:
Exchanging air between the body and the outside environment known as external respiration.
Bringing O2 to the cells and removing CO2 from them referred to as internal respiration.
Parts of respiratory system
Upper respiratory tract: (outside thorax)
Nose
Nasal Cavity
Pharynx
Larynx
Nose:
Also called external nares.
Divided into two halves by the nasal septum.
Contains the paranasal sinuses where air is warmed.
Contains cilia which is responsible for filtering out foreign bodies.
Pharynx:
Common space used by both the respiratory and digestive systems. Commonly called the throat.
Start from the nasal and oral cavities and extends inferiorly near the level of the bifurcation of the larynx and esophagus.
There are 3 types:
Nasopharynx
Oropharynx
Laryngopharynx
Larynx:
Voice box is a short, cylindrical airway - ends in the trachea.
Prevents swallowed materials entering into the lower respiratory tract.
It Passes air into the lower respiratory tract.
Produces sounds.
Supported by cartilage help to held in place by ligaments and muscles.
Voice is produced by vibration of the vocal folds or vocal cords. The vocal folds are a pair of pliable shelves of tissue that stretch across the top of the trachea (windpipe). They are enclosed within the thyroid cartilage. The vocal folds, together with the muscles and cartilages that support them, are known as the larynx.
Biologically, the larynx evolved as a valve to protect the airway and lungs. Thus, it is positioned where the airway and the esophagus separate. The vocal folds open to allow breathing and close during swallowing to prevent food from entering into the lungs and during voicing.
Trachea:
A flexible tube also called windpipe.
Extends through the mediastinum and lies anterior to the esophagus and inferior to the larynx.
Cartilage rings help the trachea to remains open at all times.
Bronchus:
The two large tubes that carry air from your windpipe to your lungs.
Left and right main bronchus in each lung.
Each bronchus divided into bronchioles
Lung:
Each lung has a conical shape. Its wide, concave base rests upon the muscular diaphragm.
Its superior part called the apex
Both lungs are supported anteriorly by thoracic wall, laterally, and posteriorly by the rib cage.
Mediastinum
Left lung: divided into 2 lobes by, smaller than the right lung & cardiac notch accommodates the heart
Right lung: divided into 3 lobes by, located more superiorly in the body due to liver on right side
Pleura:
The outer surface of each lung covered by a layer called pleura.
The outer - parietal pleura & the internal - visceral pleura.
Respiratory system organs
The main organs of the respiratory system include the nose, mouth, larynx, pharynx, lungs, and diaphragm. The nose and mouth allow air to enter the body and pass through the pharynx into the lungs. The larynx, or voice box, is located below the pharynx and produces sound. Within the lungs, air passes through branching tubes called bronchi and bronchioles ending in alveoli where oxygen and carbon dioxide are exchanged with the blood. The diaphragm contracts and relaxes to help draw air in and out of the lungs during breathing.
The respiratory system
Respiration is the process by which organisms break down glucose to release energy in the form of ATP. It can occur aerobically, using oxygen, or anaerobically without oxygen. Aerobic respiration generates more ATP but requires oxygen delivered via the respiratory system. The human respiratory system involves the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and alveoli where gas exchange occurs. Breathing is the process of inhaling and exhaling that delivers oxygen for aerobic respiration and removes carbon dioxide.
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The respiratory system has several main functions: air distribution throughout the respiratory tract, gas exchange in the alveoli of the lungs, and filtering, warming, and humidifying air. It also plays roles in smell and speech. Air follows a path from the nose through the pharynx, larynx, trachea, bronchi and bronchioles to the alveoli in the lungs where gas exchange occurs. The major breathing muscles are the diaphragm and intercostal muscles. Lung capacity is measured by tidal volume, vital capacity, expiratory reserve volume, and inspiratory reserve volume.
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The respiratory system has several main functions: air distribution throughout the respiratory tract, gas exchange in the alveoli of the lungs, and filtering, warming, and humidifying air. It also plays roles in smell and speech. Air follows a path from the nose through the pharynx, larynx, trachea, bronchi and bronchioles to the alveoli in the lungs where gas exchange occurs. The major breathing muscles are the diaphragm and intercostal muscles. Lung capacity is measured by tidal volume, vital capacity, expiratory reserve volume, and inspiratory reserve volume.
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.
Human breathing 2.1
The human respiratory system allows for gas exchange between the blood and air through breathing. Air enters through the nasal cavity and is warmed and moistened before passing into the trachea and branching bronchi and bronchioles that lead to millions of tiny alveoli in the lungs. The alveoli are adapted for efficient gas exchange with very thin walls, a large surface area, and moist inner surfaces surrounded by blood capillaries. During inhalation, the diaphragm and intercostal muscles expand the ribcage to decrease pressure and allow air into the lungs. Exhalation is a passive process where the muscles relax and pressure increases to force air back out.
Human breathing
The human respiratory system allows for gas exchange between the blood and air through breathing. Air enters through the nasal cavity and is warmed and moistened before passing into the trachea and branching bronchi and bronchioles that lead to millions of tiny alveoli in the lungs. The alveoli are adapted for efficient gas exchange with very thin walls, a large surface area, and moist interiors surrounded by blood capillaries. Breathing is driven by the contraction and relaxation of the diaphragm and intercostal muscles, inhaling when they contract to decrease thoracic pressure and exhale when they relax.
Respiratory and circulatory systems.pptx
The respiratory system takes oxygen from the air into the lungs and removes carbon dioxide from the body. The circulatory system transports oxygen and nutrients throughout the body and removes carbon dioxide. When breathing in, the diaphragm contracts and lungs expand to take in air through the nose, mouth, throat and windpipe into small air sacs in the lungs called alveoli. When breathing out, the diaphragm and chest relax, pushing carbon dioxide out through the same pathways. The heart pumps oxygen-rich blood to the body and oxygen-poor blood to the lungs through networks of arteries, veins and capillaries to exchange gases and nutrients with tissues.
L12__Respiratory_system_anatomy[1].pptx
Here are the answers to your questions:
1. The sinuses are the frontal (the lower forehead), maxillary (cheekbones), ethmoid (beside the upper nose), and sphenoid (behind the nose).
2. The human respiratory system consists of the nose, pharynx (throat), larynx (voice box), trachea (windpipe), bronchi, and lungs.
3. The nasal cartilages are small, elastic cartilages extending laterally from the nasal bridge that help keep the nostrils open.
4. The three main functions of the nose are to filter the air, humidify the air, and warm the air.
5. The left lung
Respiratory System.pdf
The respiratory system includes the nose, pharynx, larynx, trachea, bronchi, and lungs. The nose and pharynx warm and humidify incoming air before it reaches the lungs. The trachea branches into bronchi which further divide into bronchioles and terminate in alveoli in the lungs. Gas exchange occurs across the thin alveolar membranes, and respiration is controlled by the medulla, chemoreceptors, and mechanical stretch receptors. Major respiratory disorders include COPD and lung cancer.
Parts and Function of Respiratory System - Grade 9 Science
This presentation includes the parts and function of respiratory system suited for Grade 9 - Science.
Nursing bulletin-respiratory-system-1206089371820429-5
The respiratory system has both primary and secondary functions. Its primary functions are to provide oxygen for metabolism and remove carbon dioxide. Its secondary functions include facilitating smell, producing speech, and maintaining acid-base balance and body water levels. The respiratory system includes the upper respiratory tract (nose, nasal passages, pharynx, and larynx) and lower respiratory tract (trachea, bronchi, bronchioles, and lungs). The lungs are located in the thoracic cavity and are surrounded by pleura. Oxygen and carbon dioxide are exchanged between air, blood, and tissues in tiny sacs called alveoli located in the lungs.
2013 respiratory system pdf
The respiratory system brings oxygen into the body and removes carbon dioxide through a series of organs including the nose, pharynx, larynx, trachea, bronchi, bronchioles and alveoli. Air enters the nose and mouth, and is transported through the respiratory tract to the alveoli where gas exchange occurs through diffusion. The diaphragm and rib muscles work together to inhale and exhale air during breathing.
Therespiratorysystem/dhsani/geb,sust
1. The respiratory system supplies oxygen to the blood and removes carbon dioxide through a process called gas exchange that takes place in alveoli in the lungs.
2. It is made up of the nasal passages, pharynx, larynx, trachea, bronchi, and lungs and works through the processes of external respiration which exchanges gases between the body and environment, and internal respiration which transports gases between the blood and cells.
3. Breathing is regulated through the contraction and relaxation of the diaphragm and rib cage which expands and contracts the chest cavity to inhale and exhale air.
Presentation slide share
The document summarizes the structure and function of the human respiratory system. It describes the path of air from the nostrils through the nasal passage, pharynx, larynx, trachea, bronchi and bronchioles to the alveoli in the lungs. The nostrils warm, moisten and filter inhaled air before it reaches the lungs. The trachea divides into left and right bronchi which further divide into smaller bronchioles ending in alveoli where gaseous exchange occurs. The lungs are protected by the rib cage and diaphragm and receive oxygenated blood through pulmonary arteries and veins.
Human respiration
Human respiration involves two main processes: [1] External respiration which is the exchange of gases between the lungs and blood, and [2] Internal respiration which is the exchange of gases between blood and tissues at the cellular level. The ultimate goal of respiration is to release energy through cellular respiration in which oxygen is used to oxidize nutrients to produce carbon dioxide, water, and ATP as energy is stored.
Therespiratorysystem/dhsani/geb,sust
1. The respiratory system supplies oxygen to the blood and removes carbon dioxide through a process called external and internal respiration.
2. It involves the nose, mouth, pharynx, larynx, trachea, bronchi, bronchioles, lungs, and diaphragm. The lungs exchange gases via alveoli and capillaries.
3. Breathing is regulated by the diaphragm and rib cage, inhaling oxygen and exhaling carbon dioxide through a cyclic process called pulmonary ventilation.
respiratorysystem-190628042718.pdf
The respiratory system is made up of several organs that work together to allow breathing to occur. During breathing, oxygen enters the lungs through the nose and mouth, and carbon dioxide exits the lungs. The main parts of the respiratory system include the nose, pharynx, larynx, trachea, bronchi, bronchial trees, bronchioles, lungs, air sacs, and diaphragm. The nose and throat warm and filter the air before it reaches the lungs. The trachea then branches into smaller tubes called bronchi that lead into the lungs and terminate in tiny air sacs called alveoli where gas exchange occurs.
Respiratory system
The respiratory system brings air into the lungs to provide oxygen to cells through cellular respiration and removes carbon dioxide and water molecules as waste. Air enters through the nose or mouth and passes through the pharynx and larynx into the trachea. The trachea branches into bronchi which lead to bronchioles and alveoli in the lungs where oxygen and carbon dioxide are exchanged with blood. Smoking damages the respiratory system and can cause diseases like bronchitis, emphysema, asthma, and lung cancer by introducing carcinogens into the lungs.
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Parts and Function of Respiratory System - Grade 9 Science
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Kingdom fungi
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Respiratory system
- 1. RESPIRATORY SYSTEM Prepared by: MARICARR D. ALEGRE
- 2. RESPIRATION • a life process common to both plants and animals • There is an exchange of oxygen and carbon dioxide
- 4. Phases of Respiration • External Respiration –Exchange of gases between the atmosphere and the blood • This involves the lungs
- 5. Phases of Respiration Internal Respiration Exchange of gas between the blood and the body tissues
- 6. Breathing -a mechanical process that helps get air into and out of the lungs STAGES 1. INSPIRATION –intake of air 2. EXPIRATION – breathing out of air
- 7. PARTS OF THE RESPIRATORY • Nasal cavity • Larynx • Trachea • Bronchial tubes • Lungs (bronchioles and alveoli)
- 8. NOSE
- 9. NOSE • Serves as the entrance to your nasal cavity • Inside the nasal cavities are cilia which filters the air and trap the any microorganisms • A ciliated mucous membrane is also found in the lining of the nasal cavity
- 10. NASAL CAVITY
- 11. LARYNX
- 12. LARYNX • Also called Adams apple or vocal cords • Passage way of air we breath • It is protected by a muscle known as epiglottis
- 13. TRACHEA
- 14. TRACHEA • Also called as the windpipe • Lined with cilia and fluid that traps germs and other materials from the air • Cilia also traps dust and dirt upward away from the lungs
- 15. LUNGS
- 16. LUNGS • located on each side of the chest • They are separated by your heart, blood vessels and your esophagus • Serves as an organ for breathing
- 17. BRONCHIAL TUBES • Branches of the trachea that is embedded in the lungs
- 18. BRONCHIOLES Small branches of bronchi
- 19. ALVEOLI • Also known as the air sacs • It is where the exchange of gases happen