Download Respiratory System - Allied Health Technology 2

Table of Contents
TABLE OF CONTENTS
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Introduction Go
The Respiratory System Go
Diseases and Disorders Go
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
Respiratory System
◦ Consists of:
• Lungs
• Air passages
◦ Functions
• Brings oxygen into body
• Removes carbon dioxide
from body
• Helps regulate body
temperature
• Produces audio sounds
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Breathing Processes
◦ Ventilation
◦ Respiration
◦ Oxygenation
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Ventilation
◦ Inhalation
◦ Exhalation
◦ Involuntary
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Respiration
◦ Exchange of oxygen
and carbon dioxide
◦ Two stages:
• External
• Internal
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Oxygenation – the
process by which the
oxygen molecules are
loaded onto the
hemoglobin molecules
Hemoglobin – protein
molecule that carries
oxygen in the
bloodstream
Ambient air – made up
of about 21% oxygen
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Anatomy
◦ Upper airway
◦ Lower airway
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The Nose and Mouth
◦ Nasal cavity
• Cilia
• Nasolacrimal ducts
◦ Oral cavity
◦ Tonsils
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The Sinuses
◦ Connect to nasal
cavity
◦ Moisten, filter,
regulate temperature
of air
◦ Resonance
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The Pharynx and
Epiglottis
◦ Pharynx (throat)
• Nasopharynx
• Oropharynx
• Laryngopharynx
◦ Epiglottis
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The Larynx
◦ Below epiglottis
◦ Contains:
• Vocal cords
• Thyroid cartilage
• Cricoid cartilage
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The Trachea
◦ Passageway for air
into lungs
◦ Extends from cricoid
cartilage to carina
◦ Front cartilage
◦ Back smooth muscle
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Bronchi and Alveoli
◦ Bronchi
• Right mainstem
bronchus
• Left mainstem bronchus
◦ Bronchioles
◦ Alveoli
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The Lungs
◦ Key organs of
respiratory system
◦ Contain alveoli
◦ Two lungs separated
by mediastinum
◦ Lobes
◦ Pleura
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Muscles for Breathing
◦ Diaphragm
◦ Intercostal muscles
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Lung Cancer

Atelectasis
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Chronic Obstructive
Pulmonary Disease
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Asthma
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Pneumonia
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