Summary Respiratory System Anatomy

BIOS255 Week 6 - Respiratory System List the functions of the respiratory system - Week 6 - Respiratory System Exchange of oxygen for carbon dioxide / Voice production / Body temperature regulation / Acid-base balance regulation / Sense of smell External Respiration - Week 6 - Respiratory System Occurs in the lungs / the exchange of O2 and CO2 between the air inhaled in the lungs and the blood flowing through the pulmonary capillaries Internal Respiration - Week 6 - Respiratory System Occurs all over the body / The exchange of O2 and CO2 between the blood in the capillaries all over the body (systemic capillaries) and all of the cells and tissues of the body List the components of the Upper Respiratory system and the function of each component - Week 6 - Respiratory System Nostrils - Warm air on inhalation and remove moisture on exhalation / Nasal passages - filter and moderate temperature / Pharynx - allows for movement of air from the nose and mouth to the larynx / Larynx - Allows air to pass through while keeping food and drink from blocking the airway / Trachea - (Windpipe); Provides air flow to and from the lungs List the components of the Lower Respiratory system and the function of each component - Week 6 - Respiratory System Bronchi - Shuttle air to and from the lungs / Bronchioles - Ensure that incoming air is supplied to each alveolus / Alveolar ducts - Connect bronchioles to alveolar sacs / Alveoli - Exchange oxygen and carbon dioxide to and from the bloodstream What are the anatomical divisions of the pharynx and describe each - Week 6 - Respiratory System Nasopharynx (behind the nose) - Connects the nose to the mouth, allowing one to breathe through the nose / Oropharynx (behind the mouth from the soft palate to the hyoid bone) - Passageway for food moving from the mouth to the esophagus and for air moving to and from the nasal cavity / Laryngopharynx (hyoid bone to the esophagus) - Passageway for food and air; Guides food and air where to go What is the bronchial tree and why is it named this? - Week 6 - Respiratory System Air passageways that lead from the bronchi to the alveoli / Named because they divide into smaller and smaller passageways much like the branching of a tree The pharynx is common to what two body systems? - Week 6 - Respiratory System Respiratory and Digestive systems Define and describe Pleura - Week 6 - Respiratory System Each of a pair of serous membranes lining the thorax and enveloping the lungs - Serous membrane which folds back onto itself to form a two-layered membranous pleural sac