Respiratory Guided Notes p1.docx - CHAPTER 23 \u2013 RESPIRATORY SYSTEM(Part 1 23.1 \u2013 Introduction to the Respiratory System The respiratory system

Respiratory Guided Notes p1.docx - CHAPTER 23 –...

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CHAPTER 23 – RESPIRATORY SYSTEM (Part 1) 23.1 – Introduction to the Respiratory System The respiratory system consists of the __respiratory passageways_____ extending through the head, neck, and trunk, and the _lungs_ themselves. Your text mentions four general purposes of the respiratory system, list them below: ___air passageway_______ ____site for the exchange of oxygen and carbon dioxide _____ __detection of odors_______ ___sound production______ Additionally, the rate and depth of breathing influence (1) the blood levels of _oxygen__, __carbon dioxide___, and __hydrogen ions__, and (2) the venous return of __oxygen_____ and __carbon dioxide____ due to changes in compression within the thoracic cavity that occur during breathing. Look at Figure 23.1 on page 901 and complete the following. Structural Organization Upper Respiratory Tract __nose_____ __nasal cavity___ _pharynx____ Lower Respiratory Tract __larynx___ __alveolar ducts____ _trachea______ __alveoli____ _bronchus___ __respiratory bronchiole_____ __bronchiole_____ _lungs_____ __terminal bronchiole______ 1
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Functional Organization Conducting Zone __nose___ __trachea_____ ___nasal cavity_____ __bronchus____ __pharynx___ __terminal bronchiole___ __larynx____ ____lungs_ Respiratory Zone __respiratory bronchiole___ __alveolar duct___ ___alveoli______ Look at Figure 23.2 on page 902: What happens to the epithelium as you follow air from the nose down into the lungs? ___it becomes progressively thinner______ What type of epithelium lines the trachea? _pseudo stratified ciliated columnar epithelium ___ What type of epithelium lines the alveolar ducts and alveoli? __simple squamous epithelium _____ The respiratory tract is lined by a __mucous___ membrane. 23.2 – Upper Respiratory Tract The _nose___ is the first structure of the conducting passageway for inhaled air; it is formed by bone, hyaline cartilage, and dense irregular connective tissue covered with skin externally. The _nasal cavity___ is oblong-shaped, and it extends from the nostrils to the paired openings called _choanae__.
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