Week 8 2402 Lab Respiratory System_students.pptx - 2402 Week 8 Respiratory System Anatomy Physiology Unit 22 Ex 1-2 Unit 23 Ex 1-3 1 Respiratory System

Week 8 2402 Lab Respiratory System_students.pptx - 2402...

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2402 Week 8 Respiratory System Anatomy & Physiology Unit 22 Ex. 1-2 Unit 23 Ex 1-3 1
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2 Respiratory System General Anatomy Nose Pharynx Larynx Trachea Bronchi Lungs Upper respiratory Lower respiratory
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3 Upper respiratory Structures
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4 Larynx Functions Attaches to hyoid bone Opens into laryngopharynx superiorly Contains Thyroid cartilage Epiglottis Cricoid cartilage
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5 Vocal Cords False vocal cords (ventricular folds) True vocal cords
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Divisions of the Respiratory System Based on Structure & Function Structurally: Upper respiratory tract : above larynx Lower respiratory tract : larynx and below Larynx, trachea, primary, secondary, tertiary bronchi, bronchioles, terminal bronchioles, respiratory bronchioles, alveolar ducts, alveolar sacs, alveoli Functionally: Conducting zone : everything that conducts (conveys) air to the respiratory zone Respiratory zone : where gas exchange occurs Resp. bronchioles, alveolar ducts, alveolar sacs, alveoli 6
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7 Trachea
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8 Histology of the Trachea Ciliated pseudostratified columnar epithelium Goblet cells  mucus Transitions to simple columnar epithelium  simple cuboidal (bronchioles) simple squamous (respiratory zone) Supported by hyaline cartilage C-shaped
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9 Bronchi and Bronchioles Supply lung Supply each lobe Supply bronchopulmonary segment (~10 per lung)
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10 Gross Anatomy of Lungs Hilus Pulmonary artery Pulmonary veins Primary bronchus
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11 Structures within a Lobule of Lung Respirator y zone Conductin g zone
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12 Histology of Lung Tissue
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