what is the difference between upper and lower respiratory system?
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The upper airways or upper respiratory tract includes the nose and nasal passages, paranasal sinuses, the pharynx, and the portion of the larynx above the vocal folds (cords). The lower airways or lower respiratory tract includes the portion of the larynx below the vocal folds, trachea, bronchi and bronchioles.
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Types of upper respiratory infection include the common cold (head cold), the mild flu, tonsillitis, laryngitis, and sinus infection. Of the upper respiratory infection symptoms, the most common is a cough. Lung infections may also lead to a stuffy or runny nose, sore throat, sneezing, achy muscles, and headache.
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Acute lower respiratory infections include pneumonia (infection of the lung alveoli), as well as infections affecting the airways such as acute bronchitis and bronchiolitis, influenza and whooping cough. They are a leading cause of illness and death in children and adults across the world.
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Anatomy of the Respiratory System: The nose, mouth, throat, windpipe, bronchi, and lungs are parts of the respiratory system.
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Gills. Gills and lungs are the two structures commonly used by animals for respiration. Both are characterized by large amounts of surface area that function in gas exchange. The difference between them is that gills involve external extensions from the body surface, whereas lungs possess internal foldings.
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Croup is an upper respiratory illness with inflammation in the larynx causing inspiratory stridor and a harsh, barky cough. Bronchiolitis is a lower respiratory illness with inflammation in the bronchioles causing expiratory wheezing and a wet cough.
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The primary organs of the respiratory system are the lungs, which carry out this exchange of gases as we breathe. The lungs work with the circulatory system to pump oxygen-rich blood to all cells in the body.
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KEY CONCEPT The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood.
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Lungs play a major role in the respiratory system. In humans, a pair of lungs are designed in such a way that they are lined by a thin membrane, the smaller tubes called bronchioles a balloon-like structure called alveoli and network of blood capillaries increase the surface area for exchange of gases.
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Difference Between Breathing and Respiration. As stated above, breathing is the biological process of inhaling and exhaling of the gases between the cells and the environment. ... Respiration, on the other hand, is a chemical process that takes place in the cell.
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['respiratory system. system responsible for taking in oxygen and releasing carbon dioxide using the lungs.', 'nose. the organ of smell and entrance to the respiratory tract.', 'pharynx. throat; passageway for food to the esophagus and air to the larynx.', 'larynx. ... ', 'trachea. ... ', 'bronchi. ... ', 'bronchioles. ... ', 'brochus.']
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Human Respiratory System The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs.
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The nose detects odor molecules and helps filter and warm the air we inhale. The upper respiratory system, or upper respiratory tract, consists of the nose and nasal cavity, the pharynx, and the larynx. These structures allow us to breathe and speak.
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The difference between the respiratory and conducting zones is their function: the conducting zone transports the air into and out of the lungs; the respiratory zone allows gas exchange between the lungs and the blood.
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The lower respiratory tract refers to the continuation of the airways below the larynx and the branching airways throughout the lungs. Upper respiratory tract infections (URIs) are the most common of all communicable diseases.
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An acute URI is a contagious infection of your upper respiratory tract. Your upper respiratory tract includes the nose, throat, pharynx, larynx, and bronchi. Without a doubt, the common cold is the most well-known URI. Other types of URIs include sinusitis, pharyngitis, epiglottitis, and tracheobronchitis.
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Respiratory System. Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood.