Biol 235 - Chapter 23: Respiratory System (Exam 3) Questions and Answers 100% Pass

Biol 235 - Chapter 23: Respiratory System (Exam 3) Questions and Answers 100% Pass 2 Structural Components of the Respirartory System - 1. Upper respiratory system 2. Lower respiratory system 2 Functional Components of the Respiratory System - 1. Conducting zone 2. Respiratory zone Respiration Definition - The exchange of gases between the atmosphere, blood, and cells 3 Processes Required for Respiration to Occur - 1. Ventilation (breathing) 2 100% Pass Guarantee Katelyn Whitman, All Rights 2. External (pulmonary) respiration 3. Internal (tissue) respiration The upper respiratory system consists of... - The nose, pharynx, and associated structures The lower respiratory system consists of... - The larynx, trachea, bronchi, and lungs Organs of Air Conduction in Order - 1. Nasal cavity 2. Pharynx 3. Larynx 4. Trachea 5. Primary bronchi 6. Secondary bronchi 7. Tertiary bronchi 8. Bronchioles 9. Alveoli 3 100% Pass Guarantee Katelyn Whitman, All Rights External Nose - Visible on the face Internal Nose - Large cavity beyond the nasal vestibule Which area of the nose is cartilage? - The external nose is cartilage and skin. It is also lined with mucous membrane. Nasal conchae - The 3 nasal conchae or turbinates protrude from each lateral wall into the breathing passages. Each has an opening for a duct that drains secretions of the sinuses and tears into the nose. 4 Parts to the Surface Anatomy of the Nose - 1. Root 2. Apex 3. Bridge 4. External hairs Pharynx - Hollow tube that starts posterior to the internal nares and descends to the opening of the larynx in the neck Pharynx Functions - 1. Passageway for air and food 2. A resonating chamber 4 100% Pass Guarantee Katelyn Whitman, All Rights 3. Housing for the tonsils 3 Regions of the Pharynx - 1. Nasopharynx 2. Oropharynx 3. Laryngopharynx Nasopharynx - 1. Pharyngeal tonsils (adenoids) 2. Openings of the Eustachian tubes Oropharynx - 1. Lies behind the mouth 2. Participates in both respiration and digestion 3. Main palatine tonsils and small lingual tonsils Laryngopharynx - 1. Lies inferiorly and opens into the larynx and the esophagus 2. Participates in both respiration and diges