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Learn about the human respiratory system, a network of organs and tissues that helps us breathe. See the diagram of the respiratory tract and its components, such as nose, mouth, pharynx, larynx, trachea, bronchi and lungs.
- Respiratory System Disorders
The respiratory system mainly consists of the upper...
- Amphibolic Pathway
This process of synthesis is termed as anabolism. Thus we...
- Pathogens
A pathogen is an infectious agent that causes diseases in...
- Mechanism of Breathing
This is carried out through various respiratory organs. In...
- Nervous System
It is the control system for all our actions, thinking, and...
- Herbivore Examples
They have an efficient and simple digestive system. Dogs,...
- Exchange Of Gases
Respiration could be defined in numerous ways, and they have...
- Gastrointestinal Tract
The gastrointestinal diagram given below represents the...
- Respiratory System Disorders
Jul 31, 2023 · Learn about the organs, tissues, and muscles that help you breathe and distribute oxygen throughout your body. See a diagram of the respiratory system and its two main components: the upper and lower respiratory tracts.
- Overview
- The design of the respiratory system
human respiratory system, the system in humans that takes up oxygen and expels carbon dioxide.
The human gas-exchanging organ, the lung, is located in the thorax, where its delicate tissues are protected by the bony and muscular thoracic cage. The lung provides the tissues of the human body with a continuous flow of oxygen and clears the blood of the gaseous waste product, carbon dioxide. Atmospheric air is pumped in and out regularly through a system of pipes, called conducting airways, which join the gas-exchange region with the outside of the body. The airways can be divided into upper and lower airway systems. The transition between the two systems is located where the pathways of the respiratory and digestive systems cross, just at the top of the larynx.
The upper airway system comprises the nose and the paranasal cavities (or sinuses), the pharynx (or throat), and partly also the oral cavity, since it may be used for breathing. The lower airway system consists of the larynx, the trachea, the stem bronchi, and all the airways ramifying intensively within the lungs, such as the intrapulmonary bronchi, the bronchioles, and the alveolar ducts. For respiration, the collaboration of other organ systems is clearly essential. The diaphragm, as the main respiratory muscle, and the intercostal muscles of the chest wall play an essential role by generating, under the control of the central nervous system, the pumping action on the lung. The muscles expand and contract the internal space of the thorax, the bony framework of which is formed by the ribs and the thoracic vertebrae. The contribution of the lung and chest wall (ribs and muscles) to respiration is described below in The mechanics of breathing. The blood, as a carrier for the gases, and the circulatory system (i.e., the heart and the blood vessels) are mandatory elements of a working respiratory system (see blood; cardiovascular system).
Jul 29, 2020 · Learn about the respiratory system, its parts, and how it works. See an interactive model of the respiratory system and find out about common diseases and disorders that affect it.
Oct 30, 2023 · The lungs are most often considered as part of the lower respiratory tract, but are sometimes described as a separate entity. They contain the respiratory bronchioles, alveolar ducts, alveolar sacs and alveoli. This article will discuss the anatomy and function of the respiratory system.
Aug 29, 2024 · The respiratory system is divided into two main sections: the upper respiratory tract and the lower respiratory tract. Upper Respiratory Tract Nose and Nasal Cavity: The primary entry point for air.
4 days ago · Learn about the structure and function of the lungs with interactive 3D model. See how the lungs are composed of lobes, bronchi, bronchioles, and alveoli that enable gas exchange with the blood.
