Definitions for respiratory system
res·pi·ra·to·ry sys·tem

Princeton's WordNetRate this definition:3.0 / 1 vote

1. respiratory system, systema respiratoriumnoun

   the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing

WiktionaryRate this definition:1.0 / 2 votes

1. respiratory systemnoun

   The system of organs serving for respiration.

WikipediaRate this definition:0.0 / 0 votes

1. Respiratory system

   The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history. In land animals the respiratory surface is internalized as linings of the lungs. Gas exchange in the lungs occurs in millions of small air sacs; in mammals and reptiles these are called alveoli, and in birds they are known as atria. These microscopic air sacs have a very rich blood supply, thus bringing the air into close contact with the blood. These air sacs communicate with the external environment via a system of airways, or hollow tubes, of which the largest is the trachea, which branches in the middle of the chest into the two main bronchi. These enter the lungs where they branch into progressively narrower secondary and tertiary bronchi that branch into numerous smaller tubes, the bronchioles. In birds the bronchioles are termed parabronchi. It is the bronchioles, or parabronchi that generally open into the microscopic alveoli in mammals and atria in birds. Air has to be pumped from the environment into the alveoli or atria by the process of breathing which involves the muscles of respiration. In most fish, and a number of other aquatic animals (both vertebrates and invertebrates) the respiratory system consists of gills, which are either partially or completely external organs, bathed in the watery environment. This water flows over the gills by a variety of active or passive means. Gas exchange takes place in the gills which consist of thin or very flat filaments and lammelae which expose a very large surface area of highly vascularized tissue to the water. Other animals, such as insects, have respiratory systems with very simple anatomical features, and in amphibians even the skin plays a vital role in gas exchange. Plants also have respiratory systems but the directionality of gas exchange can be opposite to that in animals. The respiratory system in plants includes anatomical features such as stomata, that are found in various parts of the plant.

ChatGPTRate this definition:0.0 / 0 votes

1. respiratory system

   The respiratory system is a biological system consisting of organs and structures that help humans and most animals to breathe. Its primary function is to take in oxygen and expel carbon dioxide through the process of respiration or breathing. This system includes the nose, mouth, throat (pharynx), voice box (larynx), windpipe (trachea), bronchial tubes within the lungs, and smaller air sacs within the lungs known as alveoli. The respiratory system also works closely with the circulatory system to distribute oxygen throughout the body and remove waste gases.

FreebaseRate this definition:5.0 / 2 votes

1. Respiratory system

   The respiratory system is the biological system that introduces respiratory gases to the interior and performs gas exchange. In humans and other mammals, the anatomical features of the respiratory system include airways, lungs, and the respiratory muscles. Molecules of oxygen and carbon dioxide are passively exchanged, by diffusion, between the gaseous external environment and the blood. This exchange process occurs in the alveolar region of the lungs. Other animals, such as insects, have respiratory systems with very simple anatomical features, and in amphibians even the skin plays a vital role in gas exchange. Plants also have respiratory systems but the directionality of gas exchange can be opposite to that in animals. The respiratory system in plants also includes anatomical features such as holes on the undersides of leaves known as stomata.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Respiratory System

   The tubular and cavernous organs and structures, by means of which pulmonary ventilation and gas exchange between ambient air and the blood are brought about.

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1. • System

How to pronounce respiratory system?

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How to say respiratory system in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of respiratory system in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of respiratory system in Pythagorean Numerology is: 4

Examples of respiratory system in a Sentence

1. Scott Landes:

   Exposure to high levels of fine particulates and ozone has negative health outcomes for everyone, but particularly those that suffer from heart or lung disease, older adults, and children. Fine particulates work their way into your respiratory system and can make it difficult to breathe.

2. Tarik Benmarhnia:

   Kids inhale way more air than us, and their respiratory system is still being developed, so they're way more vulnerable than adults and it could be a very dangerous situation.

3. Sema Nickbakhsh:

   So it is well known in the respiratory system that cooperative relationships can occur among pathogens, we don't know among the viruses what the reason is for it at this stage, which means a lot more research needs to happen.

4. Rodong Sinmun:

   There is a risk of transmission of the coronavirus through the eyes ... the respiratory system is not the only route through which the new coronavirus can spread.