4.1 – Introduction to the Respiratory System

Learning Objectives

  • Identify the anatomy and describe the main functions of the respiratory system
  • Analyze, translate, and define medical terms and common abbreviations of the respiratory system
  • Practice the spelling and pronunciation of respiratory system terminology
  • Identify the medical specialties associated with the respiratory system and explore common diseases, disorders, diagnostic testing and procedures related to the respiratory system

Respiratory System Word Parts

Click on prefixes, combining forms, and suffixes to reveal a list of word parts to memorize for the respiratory system

Respiratory System Medical Terms (Text Version)

Prefix

  • a- (absence of, without)
  • an- (absence of, without)
  • dys– (difficult, painful, abnormal, laboured)
  • endo– (Gr. within, in )
  • eu- (normal, good)
  • hyper– (above, excessive)
  • hypo– (below, deficient, under)
  • intra– (L. within, in)
  • poly– (many, much)
  • tachy– (fast, rapid)

Combining Form

  • adenoid/o (adenoids)
  • alveol/o (alveolus)
  • atel/o (imperfect, incomplete)
  • bronch/o (bronchus)
  • bronchi/o (bronchus)
  • capn/o (carbon dioxide)
  • diaphragmat/o (diaphragm)
  • epiglott/o (epiglottis)
  • hem/o (blood)
  • hemat/o (blood)
  • laryng/o (larynx)
  • lob/o (lobe)
  • muc/o (mucus)
  • nas/o (nose)
  • orth/o (straight)
  • ox/i (oxygen)
  • pharyng/o (pharynx)
  • phon/o (sound, voice)
  • phren/o (diaphragm)
  • pleur/o (pleura)
  • pneum/o (lung, air)
  • pneumon/o (lung, air)
  • penumat/o (lung)
  • pulmon/o (lung)
  • py/o (pus)
  • radi/o (x-rays, ionizing radiation)
  • respir/o (breath, breathing)
  • rhin/o (nose)
  • sept/o (septum)
  • sinus/o (sinus)
  • somn/o (sleep)
  • son/o (sound)
  • spir/o (breathe, breathing)
  • thorac/o (thorax, chest cavity, thoracic cavity)
  • tom/o (to cut, section, slice)
  • tonsill/o (tonsil)
  • trache/o (trachea)

Suffix

  • algia (pain)
  • ar (pertaining to)
  • ary (pertaining to)
  • cele (hernia, protrusion)
  • centesis (surgical puncture to aspirate fluid)
  • eal (pertaining to)
  • ectasis (stretching out, dilation, expansion)
  • emia (in the blood)
  • gram (the record, radiographic image)
  • graph (instrument used to record)
  • graphy (process of recording, radiographic imaging)
  • meter (instrument used to measure)
  • metry (measurement)
  • pexy (surgical fixation, suspension)
  • pnea (breathing)
  • rrhagia (rapid flow of blood, excessive bleeding)
  • scope (instrument used for visual examination)
  • scopic (pertaining to visual examination)
  • scopy (process of visually examining, visual examination)
  • spasm (sudden involuntary muscle contraction, spasmodic contraction)
  • stenosis (constriction, narrowing)
  • stomy (creation of an artificial opening)
  • thorax (chest, chest cavity, thoracic cavity)
  • tomy (cut into, incision)
  • itis (inflammation)
  • ectomy (excision, cut out)
  • tome (instrument used to cut)
  • genic (producing, originating, causing)
  • ic (pertaining to)
  • ia (condition, diseased state, abnormal state)
  • plasty (surgical repair)
  • oid (resembling)
  • logy (study of)
  • logist (specialist or physician who studies and treats)

Activity source: Respiratory System Word Parts by Kimberlee Carter, licensed under CC BY 4.0./Text version added.

Introduction to the Respiratory System

How long you can hold your breath as you continue reading? How long can you do it? Chances are you are feeling uncomfortable already. A typical human cannot survive without breathing for more than three minutes, and even if you wanted to hold your breath longer, your autonomic nervous system would take control. Although oxygen is critical for cells, it is the accumulation of carbon dioxide that primarily drives your need to breathe.

Did You Know?

If you hold your breath for longer than 3 minutes, your autonomic nervous system will take control.

The major structures of the respiratory system function primarily provide oxygen to body tissues for cellular respiration, remove the waste product carbon dioxide, and help to maintain acid-base balance. Portions of the respiratory system are also used for non-vital functions, such as sensing odors, speech production, and for straining, such as coughing.

 

Major respiratory structures. Image description available.
Figure 4.1 Major Respiratory Structures. The major respiratory structures span the nasal cavity to the diaphragm. From Betts, et al., 2013. Licensed under CC BY 4.0. [Fig. 4.1 Image description.]

Watch Respiratory system, Part 1: Crash Course Anatomy & Physiology #31 (10 min on YouTube)

Media 4.1: CrashCourse. (2015, August 31). Respiratory system, part 1: Crash Course anatomy & physiology #31. [Video]. YouTube. https://youtu.be/bHZsvBdUC2I

Respiratory System Medical Terms

Respiratory System Medical Terms (Text version)
  1. Adenoiditis
    • adenoid/itis
    • inflammation of the adenoids
  2. adenoidectomy
    • adenoid/ectomy
    • excision of the adenoids
  3. adenotome
    • aden/o/tome
    • instrument used to cut the adenoids
  4. alveolitis
    • alveol/itis
    • inflammation of the alveoli
  5. alveolar
    • alveol/ar
    • pertaining to the alveolus
  6. atelectasis
    • atel/ectasis
    • incomplete expansion
  7. bronchitis
    • bronch/itis
    • inflammation of the bronchus
  8. bronchogenic carcinoma
    • bronch/o/genic carcin/oma
    • cancerous tumour originating in a bronchus
      (lung cancer)
  9. bronchopneumonia
    • bronch/o/pneumon/ia
    • diseased state of bronchi and lungs
  10. bronchoplasty
    • bronch/o/plasty
    • surgical repair of the bronchi
  11. bronchoscope
    • bronch/o/scope
    • instrument used for visual examination of the bronchi
  12. bronchoscopy
    • bronch/o/scopy
    • visual examination of the bronchi
  13. bronchoalveolar
    • bronch/o/alveol/ar
    • pertaining to the bronchi and alveoli
  14. bronchospasm
    • bronch/o/spasm
    • spasmodic contraction of the bronchi
  15. bronchiectasis
    • bronchi/ectasis
    • dilation of the bronchi
  16. capnometer
    • capn/o/meter
    • instrument used to measure carbon dioxide
  17. acapnia
    • a/capn/ia
    • condition of absence (less than normal level) of carbon dioxide (in the blood)
  18. hypercapnia
    • hyper/capn/ia
    • condition of excessive (greater than normal levels) carbon dioxide (in the blood)
  19. hypocapnia
    • hypo/capn/ia
    • condition of deficient (low levels) of carbon dioxide (in the blood)
  20. diaphragmatocele
    • diaphragmat/o/cele
    • hernia of the diaphragm
  21. diaphragmatic
    • diaphragmat/ic
    • pertaining to the diaphragm
  22. epiglottitis
    • epiglott/itis
    • inflammation of the epiglottis
  23. hemothorax
    • hem/o/thorax
    • blood in the thoracic cavity
  24. hematology
    • hemat/o/logy
    • study of blood
  25. hematologist
    • hemat/o/logist
    • specialist in blood and blood disorders
  26. laryngotracheobronchitis (LTB)
    • laryng/o/trache/o/bronch/itis
    • inflammation of the larynx, trachea, and bronchi
  27. laryngoplasty
    • laryng/o/plasty
    • surgical repair of the larynx
  28. laryngostomy
    • laryng/o/stomy
    • creation of an artificial opening into the larynx
  29. laryngotracheotomy
    • laryng/o/trache/o/tomy
    • incision into the larynx and trachea
  30. laryngoscope
    • laryng/o/scope
    • instrument used for visual examination of the larynx
  31. laryngoscopy
    • laryng/o/scopy
    • process of viewing the larynx
  32. laryngeal
    • laryng/eal
    • pertaining to the larynx
  33. laryngospasm
    • laryng/o/spasm
    • spasmodic contraction of the larynx
  34. laryngitis
    • laryng/itis
    • inflammation of the larynx
  35. lobar pneumonia
    • lob/ar pneumon/ia
    • disease state of the lung pertaining to the lobe(s)
  36. lobectomy
    • lob/ectomy
    • excision of the lobe(s)
  37. mucoid
    • muc/oid
    • resembling mucus
  38. mucous
    • muc/ous
    • pertaining to mucus
  39. nasopharyngitis
    • nas/o/pharyng/itis
    • inflammation of the nose and pharynx
  40. nasopharyngeal
    • nas/o/pharyng/eal
    • pertaining to the nose and pharynx
  41. orthopnea
    • orth/o/pnea
    • breathing is easier in a straight position
  42. anoxia
    • an/ox/ia
    • condition of absence (deficiency) of oxygen
  43. oximeter
    • oxi/meter
    • instrument used to measure oxygen
  44. hypoxemia
    • hyp/ox/emia
    • condition of deficient oxygen in the blood
  45. hypoxia
    • hyp/ox/ia
    • condition of deficient oxygen
  46. pharyngitis
    • pharyng/itis
    • inflammation of the pharynx
  47. aphonia
    • a/phon/ia
    • condition of absence of voice
  48. dysphonia
    • dys/phon/ia
    • condition of difficult speaking (voice)
  49. phrenalgia
    • phren/algia
    • pain in the diaphragm
  50. phrenospasm
    • phren/o/spasm
    • spasm of the diaphragm
  51. pleuritic
    • pleurit/ic
    • pertaining to the pleura
  52. pleuritis
    • pleur/itis
    • inflammation of the pleura
  53. pleuropexy
    • pleur/o/pexy
    • surgical fixation of the pleura
  54. interpleural
    • inter/pleur/al
    • pertaining to between the pleura (space between the pleural membranes)
  55. pneumoconiosis
    • pneum/o/coni/osis
    • abnormal condition of dust in the lungs
  56. pneumonia
    • pneumon/ia
    • diseased state of lung
  57. pneumonitis
    • pneumon/itis
    • inflammation of the lung
  58. pneumothorax
    • pneum/o/thorax
    • air in the thoracic cavity
  59. pneumonectomy
    • pneumon/ectomy
    • excision of the lung
  60. pneumatocele
    • pneumat/o/cele
    • hernia of the lung
  61. pulmonary
    • pulmon/ary
    • pertaining to the lung(s)
  62. pyothorax
    • py/o/thorax
    • pus in the thoracic cavity
  63. radiography
    • radi/o/graphy
    • process of recording x-rays
  64. radiologist
    • radi/o/logist
    • physician who specializes in the diagnosis and treatment of disease using medical imaging
  65. radiology
    • radi/o/logy
    • study of the use of radiant energy in diagnosing disease
  66. respirologist
    • respir/o/logist
    • specialist who studies and treats disease and disorders related to breathing
  67. respirology
    • respir/o/logy
    • the study of breathing disorders and disease
  68. rhinitis
    • rhin/itis
    • inflammation of the nose
  69. rhinomycosis
    • rhin/o/myc/osis
    • abnormal condition of fungus in the nose
  70. rhinorrhagia
    • rhin/o/rrhagia
    • rapid flow of blood from the nose
  71. rhinoplasty
    • rhin/o/plasty
    • surgical repair of the nose
  72. rhinorrhea
    • rhin/o/rrhea
    • discharge from the nose
  73. septoplasty
    • sept/o/plasty
    • surgical repair of the septum
  74. septotomy
    • sept/o/tomy
    • incision into the (nasal) septum
  75. sinusitis
    • sinus/itis
    • inflammation of a sinus
  76. polysomnography (PSG)
    • poly/somn/o/graphy
    • process of recording many (test) during sleep
  77. sonogram
    • son/o/gram
    • the record of sound
  78. sonography
    • son/o/graphy
    • process of recording sound
  79. spirometer
    • spir/o/meter
    • instrument used to measure breathing (lung volume)
  80. spirometry
    • spir/o/metry
    • measuring breathing (air flow)
  81. thoracalgia
    • thorac/algia
    • pain in the chest, thorax
  82. thoracocentesis
    • thorac/o/centesis
    • surgical puncture to aspirate fluid (from the thoracic cavity)
  83. thoracentesis
    • thora/centesis
    • surgical puncture to aspirate fluid from thoracic cavity
  84. thoracotomy
    • thorac/o/tomy
    • incision into the thoracic cavity
  85. thoracoscopy
    • thorac/o/scopy
    • visual examination of the thoracic cavity
  86. thoracic
    • thorac/ic
    • pertaining to the chest, thorax
  87. thoracoscope
    • thorac/o/scope
    • instrument used to visualize the thoracic cavity
  88. tomography
    • tom/o/graphy
    • process of recording slices
  89. tonsillitis
    • tonsill/itis
    • inflammation of the tonsils
  90. tonsillectomy
    • tonsill/ectomy
    • excision of the tonsils
  91. tracheitis
    • trache/itis
    • inflammation of the trachea
  92. tracheoplasty
    • trache/o/plasty
    • surgical repair of the trachea
  93. tracheostomy
    • trache/o/stomy
    • creation of an artificial opening into the trachea
  94. tracheotomy
    • trache/o/tomy
    • incision into the trachea
  95. endotracheal
    • endo/trach/eal
    • pertaining to within the trachea
  96. tracheostenosis
    • trache/o/stenosis
    • narrowing of the trachea
  97. endoscope
    • endo/scope
    • instrument used to view within
      (a hollow organ or cavity)
  98. endoscopic
    • endo/scopic
    • pertaining to view within
      (a hollow organ or cavity)
  99. endoscopy
    • endo/scopy
    • visual examination within
      (a hollow organ or cavity)
  100. apnea
    • a/pnea
    • absence of breathing
  101. dyspnea
    • dys/pnea
    • breathing that is difficult
  102. eupnea
    • eu/pnea
    • normal breathing
  103. hypopnea
    • hypo/pnea
    • deficient breathing
  104. tachypnea
    • tachy/pnea
    • rapid breathing

Activity Source: Respiratory System Medical Terms by Kimberlee Carter, licensed under CC BY 4.0./Text version added.

Image Descriptions

Figure 4.1 image description: This figure shows the upper half of the human body. The major organs in the respiratory system are labeled. [Return to Figure 4.1].

Attribution

Except where otherwise noted, this chapter is adapted from “Respiratory System” in Building a Medical Terminology Foundation by Kimberlee Carter and Marie Rutherford licensed under CC BY 4.0. / A derivative of Betts et al., which can be accessed for free from Anatomy and Physiology (OpenStax). Adaptations: dividing Respiratory System chapter content into sub-chapters.

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License

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Building a Medical Terminology Foundation 2e Copyright © 2024 by Kimberlee Carter; Marie Rutherford; and Connie Stevens is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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