Functions of the Respiratory System The circulation of air from the nose to the lungs Roots, suffixes, and also prefixes Cancer Focus Related Abbreviations and Acronyms More Resources

Functions of the Respiratory System

The primary function of the Respiratory System is the inhalation offresh oxygen (O2) necessary by the body"s cells and the exhalationof waste carbon dioxide (CO2). It likewise helps maintain bodytemperature and also get rid of excess water from the body. TheRespiratory mechanism is dependent on the correct functioning of thecirculatory system as the O2 and waste CO2 are carried in theblood stream.

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The circulation of air from the nose to the lungs

The noseis a PASSAGEWAY FOR AIR and also is also asensory body organ. It warms and also mois10s air, and hair likeprocesses (cilia) filter the air before it reaches the lungs.The pharynxor "throat" is a funnel shaped tubeacting as a passage way for air and food. The lowest percent ofthe pharynx joins the esophagus (food tube).The larynxor "voice box" is lined through mucousmembrane, 2 folds of membrane divide the larynx in 2,in between these is the GLOTTIS which is the narrowest component of theair passage. The glottis is safeguarded by a lid of fibrocartilage (the EPIGLOTTIS), this closes over the glottis whenyou swpermit.The tracheaor "windpipe" is a tube composed ofcartilage and lined through mucus membrane lying in front of theesophagus. The trachea diverges right into the best and also left bronchi.The bronchi are "C" shaped rings of cartilagelined with ciliated mucus membrane that "sweeps" out dustpposts. The bronchi branch right into SECONDARY BRONCHI as theyenter the lungs, these further divide into BRONCHIOLES. As thesecondary bronchi and bronchioles divide the wall surfaces becomethinner and also more elastic, branching right into minute ALVEOLI whichdeliver gases in the lungs.The lungsare the primary body organ of respiration. Inthe lungs countless ALVEOLI and also blood Capillaries exchangeOxygen and also carbon dioxide. Each lung is housed in a separatePLEURAL CAVITY (which consequently are located in the bigger THORACICCAVITY). PLEURA are SACS of membrane that line the pleuralcavity to lessen friction caused by breapoint.The diaphragmis the primary muscle of respirationsituated at the base of the thoracic cavity. The muscle contractsand flat10s so that the thorax and also lungs have actually room for incomingair resulting in you to INHALE, it then relaxes leading to you to EXHALE.

Roots, suffixes, and prefixes

Most clinical terms are consisted of of a root word plus a sufdeal with (word ending) and/or a predeal with (start of the word). Here are some examples pertained to the Respiratory System. For more details watch Chapter 4: Understanding the Materials of Medical Terminology

componentmeaninginstance A-absence of anosmia = absence of the feeling of smellPNEA-breath dyspnea = tough or painful breathingBRONCH-bronchi Bronchoscope = instrument to examine the bronchiLARYNG-larynx laryngitis = inflammation of the larynxPULMO-lung pulmonary metastases = lung secondariesPNEUM-lung / Air pneumonia = major infection of the lungsRHINO-nose rhinoplasty = cosmetic surgical procedure, a "nose job"

Cancer Focus

Lung Cancer OverviewLung cancer is just one of the many common forms of cancer. The lungs are a pair of cone-shaped organs positioned inside the chest, they lug oxygen into the body and take out waste carbon dioxide. Tbelow is a strong attach between smoking and lung cancer. Tright here are two major categories of lung cancer; Small Cell Lung Cancer (SCLC) , and Non-Small Cell Lung Cancer (NSCLC). World-wide over 1 million human being are diagnosed via lung cancer yearly. Net Reresources for Lung CancerSmall Cell Lung CancerSmall Cell Lung Cancer (SCLC) accounts for one quarter of all lung cancers. SCLC is likewise known as "oat cell" carcinoma bereason of the shape of the cancer cells. Net Resources for Small Cell Lung Cancer (SCLC)Non-Small Cell Lung CancerNon-little cell lung cancer (NSCLC) accounts for about 3 quarters of all lung cancers. Included in the NSCLC team of cancers are a) Squamous cell, or epidermoid, cancer which arises from cells that line the airmethods - this is the many widespread kind of lung cancer; b) Adenocarcinoma which arises in the mucus-producing cells that line the top airways; and c) Large cell carcinoma. Web Resources for Non-Small Cell Lung Cancer (NSCLC)Caprovides of Lung CancerIt is estimated that about 85% of lung cancers are resulted in by smoking, it is typically found in civilization that smoke or that used to smoke cigarettes. Lung cancer is likewise linked via passive cigarette smoking and also exposure to radon (a radioactive gas). Web Reresources for SmokingHead and Neck CancerHead and also neck cancers are malignancies arising in the top aerodigestive tract (this includes: lip, tongue, salidiffer glands, mouth, oropharynx, nasopharynx, hypopharynx, nasal cavity, and also larynx). Laryngeal (voice-box) cancer is the most constant form, bookkeeping for around a quarter of head and also neck cancers. Web Reresources for Head and Neck CancerLaryngeal CancerLaryngeal cancer is a malignancy occurring in the tconcerns of the larynx (voicebox). People who smoke have actually a greater risk of arising the disaese. Most laryngeal cancers are of squamous cell histology, these can be categorised as either keratinizing or non-keratinizing. Tright here are a selection of other non-squamous cell laryngeal cancers. Internet Reresources for Laryngeal CancerNasal, Paranasal, and Nasopharynx Cancer Net Resources for Nasal CancerOral cavity, Lip, Salivary gland also Cancer Internet Resources for Oral cavity Cancer

Related Abbreviations and also Acronyms

ENTEar nose throatFEVForced expectorant volume (a lung test)IASLCInternational Association for the Study of Lung CancerNSCLCNon-little cell lung cancerSCLCSmall cell lung cancerSPOHNCSupport for People through Oral and also Head and also Neck CancerURTIUpper respiratory tract infectionVEFVentricular ejection fraction (tests lung function)

More Reresources (3 links)

Respiratory System

SEER, National Cancer InstitutePart of a SEER training module for cancer regisattempt staff.

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Respiratory System - Self Test inquiries

WebAnatomy, University of MinnesotaTest your anatomy understanding through these interactive inquiries. Includes various question types and also answers.

The Respiratory System

Paul AndersenPaul Andersen starts this video through a description of the respiratory surchallenge. He defines exactly how worms, insects, fish and also mammals take in oxygen and release carbon dioxide. He then tours the significant organs of the respiratory system; from the pharynx to the trachea, bronchus, bronchiole and also alveoli. He likewise explains exactly how oxygen is brought on the hemoglobin and also how carbon dioxide is carried as bicarbonate.