Respiratory_SystemV2

Respiratory_SystemV2 - The University of North Carolina at...

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Unformatted text preview: The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill Click to edit Master subtitle style 2005 11 Respiratory System EXSS 175 The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 22 Purpose of the Respiratory Gas Exchange Intake O2 and deliver to body cells and elimination of CO2 produced by body cells Regulate Blood pH Contains receptors for the sense of smell, filters air, produces vocal sounds, excretes The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 33 Respiration Gas exchange between atmosphere and body cells Gas = oxygen, carbon dioxide 3 Processes of Respiration: Pulmonary Ventilation Movement of air: In lungs â Out lungs Alveolar Respiration The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 44 General Pathway of Airflow Nose Pharynx Trachea Bronchi Lungs The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 55 Nasal Cavity Nose Covered with skin Supported internally by bone and cartilage Nasal Cavity Hollow space behind nose Divided into R and L portions by nasal septum Anterior is cartilage Posterior is bone (vomer, ethmoid, maxillae, The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 66 Nasal Cavity Divided Into 3 Areas Vestibule: Anterior portion just inside nostrils Lined with skin & coarse hairs Filter large dust particles Olfactory: The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 77 Nasal Cavity Divided Into 3 Areas (cont.) Respiratory (major portion): Superior, middle, inferior nasal conchae Curl out from lateral walls Provide superior, middle, and inferior meatuses (groove-like passageways) Inhaled air is warmed as it moves through passageways & mucus is released to trap The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 99 The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 1010 Pharynx Throat Location: Behind oral cavity Between nasal cavity and larynx Funnel shaped tube ~ 5 inches long Functions: Passageway for air and food The University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill 2005 The University of North Carolina at Chapel Hill...
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Respiratory_SystemV2 - The University of North Carolina at...

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