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RESPIRATORY SYSTEM. Definition and Function Respiration is the process of breathing in and out When we breathe in we are inhaling oxygen (O 2 ) When we.

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Presentation on theme: "RESPIRATORY SYSTEM. Definition and Function Respiration is the process of breathing in and out When we breathe in we are inhaling oxygen (O 2 ) When we."— Presentation transcript:

1 RESPIRATORY SYSTEM

2 Definition and Function Respiration is the process of breathing in and out When we breathe in we are inhaling oxygen (O 2 ) When we breathe out we are exhaling carbon dioxide (CO 2 ) The function of the Respiratory System is to supply blood with oxygen (O 2 ) and rid the blood of carbon dioxide (CO 2 )

3 RESPIRATORY SYSTEM NOSE LARYNX BRONCHIOLE NASOPHARYNX OROPHARYNX TRACHEA BRONCHUS LEFT LUNG DIAPHRAGM

4 Upper respiratory tract are:  Nose  Pharynx i.e. Throat nasopharyx, oropharynx,laryngopharynx  Trachea  Bronchi and bronchioles

5 Lower Respiratory Tract  Lungs  Alveoli  Pleura  diaphragm

6 NOSE OrganRootCombining Form Example Noserhinrhin/orhinoplasty Nose pg19 nasnas/onasal

7 Pharynx Three divisions of the pharynx: 1 nasopharynx 2 oropharynx 3 laryngopharynx- divides into two (2) branches - one for food and one for air

8 Pharnyx OrganRootCombining form Example Pharynx pg20 pharyngpharyng/opharyngeal pharyngitis

9 Larynx Referred to as the voicebox Contains vocal chords Contains the epiglottis – prevents food entering lungs

10 Larynx OrganRootCombining form Example Larynx pg 20,21 Larynglaryng/olaryngeal laryngectomy

11 Trachea Bronchi Is the windpipe Carries air into lungs Tracheostomy – opening of trachea to the body surface Pg 21 Branch off from trachea into left and right lungs Theses branches further divide into bronchioles Each bronchiole ends with the alveoli Gas exchange occurs in the alveoli Bronchial – relating to the bronchi pg22

12 Medical Terms PartRoot Word Combining Form Function/ Description Lungs pg 23 pneumpneum/o and pneumon/o The lungs are the main organs of respiration. They are made of elastic tissue for inflation and deflation Pleurapleurpleur/odouble layered membrane covering lungs provides protection  Pleural – relating to the pleura pg 23 Diaphragmphrenphren/oThe diaphragm is the main muscle of breathing  phrenic – relating to the diaphragm  phrenologist - ……… pg 24

13 More Medical Terms PartCombining Form Function/ Description Ribscost/oThe ribs consist of twelve (12) pairs of ribs, The first seven (7) join the sternum anteriorly. Ribs protect organs of the thoracic cavity  intercostal Thoraxthorac/ochest cavity containing organs such as heart, lungs and oesophagus

14 Suffixes SuffixMeaningExample -plastysugical repair or reconstruction Laryngoplasty -scopean instrument to view internally Laryngoscope spasmsudden involuntary movement of a muscle Laryngospasm -alrelating or pertaining toNasal Pharyngeal -tomysurgical incisionTracheotomy -ectomysurgical removal ofLaryngectomy -itisinflammation ofpharyngitis -centesisa surgical puncture to remove fluid thoracentesis / pleurocentesis

15 Recall: When to remove combining vowels  If root word ends in a vowel & suffix begins with a vowel, combining vowel is dropped

16 Respiratory diseases & disorders Commonly feature inflammation This can occur in the mucous membranes of the trachea and bronchi

17 Abbreviations AbbreviationMeaning CALChronic Airway Limitation CPAPcontinous positive airway pressure ENTear, nose, throat LRTlower respiratory tract URTIupper respiratory tract infection SOBshortness of breath CXRChest x-ray


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