1. Chapter 7: The Respiratory System Professor Fowler
Medical Terminology
Chapter 7: The Respiratory System
Professor Fowler

2. Words to Know Aer/o: air Ox/o, ox/i: oxygen Alveol/o: alveoli
Pharyng/o: pharynx
Atel/o: incomplete
Pleur/o: pleura
Bronch/o, bronchi/o: bronchus
Pneum/o, pneumon/o, pulmon/o: lung
Coni/o: dust
Rhin/o: nose
Laryng/o: larynx
Sept/o: septum/wall
Lob/o: lobe
Spir/o: to breathe
Nas/o: nose
Tuss/o: cough
Muc/o: mucus

3. Respiratory System Suffixes
-capnia: carbon dioxide
-ectasis: dilation
-osmia: smell
-phonia: voice
-plegia: paralysis
-pnea: breathing
-ptysis: spitting
-spasm: involuntary movement
-thorax: chest

4. Vocabulary Aspiration: inhale food or liquid
Phlegm: mucus in respiratory tract
Cyanosis: blue condition
Sputum: mucus out of respiratory tract
Epistaxis: nosebleed
Rales: crackles
Hemoptysis: cough up blood
Rhonchi: wheeze
Stridor: high pitched wheeze
Patent: open
Percussion: to tap

5. Abbreviations
CO2 RA
COPD
SIDS
CPR
SOB
CXR TB
ENT
TPR
MDI
URI O2
PPD

6. The Respiratory System
Includes the nasal cavity, pharynx, larynx, trachea, bronchial tubes and lungs
Purpose: breathe in and breathe out
Respiration in 3 parts
Ventilation
Inhalation
Exhalation
External respiration
Internal respiration

7. Nasal Cavity Where ventilation begins Nares (nostrils) Nasal septum
Palate
Mucous membrane
Mucus
Cilia

8. Pharynx “throat” Used for respiratory and digestive systems 3 parts
Nasopharynx
Oropharynx
laryngopharynx
Tonsils – 3 sets
Eustachian or auditory tube

9. Larynx
“voice box”
Vocal cords
Glottis
Epiglottis

10. Trachea
“windpipe”
Passageway for air
Approximately 4 inches long

11. Bronchial Tubes Primary bronchi Secondary and tertiary bronchi
Bronchioles
alveoli

12. Lungs Collection of bronchi, bronchioles and alveoli Pleura Lobes
Right has 3
Left has 2

13. Respiratory Muscles
Diaphragm
Intercostal muscles