- published: 08 May 2015
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The trachea, colloquially called the windpipe, is a tube that connects the pharynx and larynx to the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs. Only in the lungfish, where the lung is connected to the pharynx and the larynx, is it absent. The trachea extends from the larynx and branches into the two primary bronchi. At the top of the trachea the cricoid cartilage attaches it to the larynx. This is the only complete ring, the others being incomplete rings of reinforcing cartilage. The trachealis muscle joins the ends of the rings and these are joined vertically by bands of fibrous connective tissue, the annular ligaments of trachea. The epiglottis closes the opening to the larynx during swallowing.
The trachea develops in the second month of development. It is lined with an epithelium that has goblet cells which produce protective mucins. An inflammatory condition, also involving the larynx and bronchi, called croup can result in a barking cough. A tracheotomy is often performed for ventilation in surgical operations where needed. Intubation is also carried out for the same reason by the inserting of a tube into the trachea. From 2008, operations have transplanted a windpipe grown by stem cells, and synthetic windpipes; their success is however doubtful.
The respiratory system (called also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for the process of respiration in an organism. The respiratory system is involved in the intake and exchange of oxygen and carbon dioxide between an organism and the environment.
In air-breathing vertebrates like human beings, respiration takes place in the respiratory organs called lungs. The passage of air into the lungs to supply the body with oxygen is known as inhalation, and the passage of air out of the lungs to expel carbon dioxide is known as exhalation; this process is collectively called breathing or ventilation. In humans and other mammals, the anatomical features of the respiratory system include trachea, bronchi, bronchioles, lungs, and diaphragm. 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 alveoli (air sacs) in the lungs.
Gas Exchange in Insects
Respiratory System In Insects
Honey Bee Tracheal Dissection
Invertebrate Respiratory System
Flipping the deep boxes and treating for tracheal mites
Tracheal mite dissection
Respiratory System | The Dr. Binocs Show | Learn Videos For Kids
RESPIRATORY SYSTEM: INTERNAL AND EXTERNAL GILLS
Respiratory System in Insects
Pharynx (Digestive System) ☆ Human Anatomy Course
In this video, we look at the tracheal system in insects. This is a nice quick and short topic, but can be tricky! - The overall structure of the system - Ventilation - Limitations - Preventing water loss This video was made for AQA AS Level Biology students studying Unit 2.
Follow us at: https://plus.google.com/+tutorvista/ Check us out at http://www.tutorvista.com/content/biology/biology-iv/respiration-animals/external-respiration.php Insect Respiratory System Insects require oxygen just as we do, and must "exhale" carbon dioxide, a waste product of cellular respiration. Oxygen is delivered to the cells directly through respiration, and not carried by blood as in vertebrates. Along the sides of the thorax and abdomen, a row of small openings called spiracles (8) allow the intake of oxygen from the air. Most insects have one pair of spiracles per body segment. Small flaps or valves keep the spiracle closed until there is a need for oxygen uptake and carbon dioxide discharge. When the muscles controlling the valves relax, the valves open and the insect ta...
Checking for mites in the trachea located just behind the first pair of legs. Fairly easy process. The trachea on this bee look healthy. The process is described here: http://www.ars.usda.gov/SP2UserFiles/person/31186/Sammataro-VP%2832-4%29-November%204.pdf However, the video linked in the pdf looks like it was shot with a potato. I don't remove the abdomen so that it's easier to hold the honey bee in the forceps.
This paper: AN EASY DISSECTION TECHNIQUE FOR FINDING THE TRACHEAL MITE, ACARAPIS WOODI (RENNIE) (ACARI: TARSONEMIDAE), IN HONEY BEES, WITH VIDEO LINK http://www.ars.usda.gov/SP2UserFiles/person/31186/Sammataro-VP%2832-4%29-November%204.pdf (Internat. Journ. Acarology; Vol 32 No. 4 illustrates a quick and easy technique for dissecting bees for tracheal mites. The video is a useful training tool for researchers, beekeepers or regulatory personnel who need to test for the mite's presence. Video provided by Diana Sammataro USDA-ARS Carl Hayden Honey Bee Research Center
Hey Kids, have you ever wondered what happens after we breathe? How does the air travel inside our body? Well, Dr. Binocs is here to explain it all in today's topic, Respiratory System. The detailed video break-up is given below 00:45 – Role of Oxygen 01:57 – Function of Lungs 03:08 – Trivia time Voice Over Artist - Joseph D'Souza Script Writer & Director - Sreejoni Nag Visual Artist - Pranav Korla Illustrators - Aashka Shah, Pranav Korla Animators - Tushar Ishi, Chandrashekhar Aher VFX Artist - Kushal Bhujbal Background Score - Jay Rajesh Arya Sound Engineer - Mayur Bakshi Creative Head - Sreejoni Nag Producer: Rajjat A. Barjatya Copyrights and Publishing: Rajshri Entertainment Private Limited All rights reserved. Share on Facebook - https://goo.gl/Jp0MCS Tweet about this - https://g...
Class 7: Science: Respiratory Systems in Organisms: Respiratory system in Insects
Learn more about the Pharynx (Digestive System). This human anatomy lecture has been made by Wendy Riggs, for the College of the Redwoods. This video was made by another YouTube user and made available for the use under the Creative Commons licence "CC-BY". Her channel can be found here: https://www.youtube.com/user/wendogg1 "The pharynx (plural: pharynges) is an organ found in vertebrates and invertebrates, though the structure is not universally the same across the species. In humans the pharynx is part of the digestive system and also of the conducting zone of the respiratory system. The conducting zone also includes the nose, larynx, trachea, bronchi, and bronchioles, and their function is to filter, warm, and moisten air and conduct it into the lungs.[citation needed] It makes up th...