Respiratory System

Respiratory System - Respiratory System Chapter 37 Section...

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Unformatted text preview: Respiratory System Chapter 37 Section 3 Notes Notes Lecture Outline – The Respiratory System PowerPoint Notes textbook questions Keys Keys Respiration Respiration Two processes: 1. Release of energy from breakdown of food molecules. All living cells use oxygen to release energy. This process produces waste carbon dioxide. 2.The exchange of gases between the atmosphere and body’s cells. We will focus on the exchange of gases. So what are the functions of the So what are the functions of the respiratory system? Bring oxygen into the body Remove carbon dioxide (CO2) from the body Clean, moisten and warm air Enable speech Organs of the respiratory system Organs of the respiratory system Many organs assist in the respiratory process. Main organs of respiration are the lungs Organs of the respiratory system Organs of the respiratory system Nose and sinuses cleans, warms and moistens Nose and Nasal Cavities Frontal sinus Middle nasal concha Inferior nasal concha External naris Nasal concha Sphenoid sinus Internal naris Nasopharynx Organs of the respiratory system Organs of the respiratory system Pharynx – short tube leading to larynx Epiglottis – cartilaginous flap covering opening to larynx (glottis) Larynx – voicebox containing vocal cords Hyoid Bone Epiglottis Thyrohyoid Membrane Thyroid Cartilage Cricothyroid Ligament Cricothyroid Muscles Cricothyroid Cartilage Trachea Organs of the respiratory system Organs of the respiratory system Trachea – tubes mouth trachea bronchi alveoli leading into lungs. These branch into primary bronchi then into bronchioles Organs of the respiratory system Organs of the respiratory system Bronchioles end in sac like structures called Alveoli Gas exchange occurs between the alveoli and capillaries Primary bronchus Secondary bronchus Tertiary bronchus Bronchiole Terminal bronchiole Alveoli Bronchial Bronchial Tubes Organs of the respiratory system Organs of the respiratory system larynx trachea sinuses nasal cavity mouth pharynx epiglottis larynx bronchiole alveoli larynx trachea bronchus bronchioles larynx trachea lungs Gas Exchange Gas Exchange Capillaries surround the alveoli Gases are exchanged between the thin walls of the alveoli and capillaries sinuses pharynx bronchiole larynx trachea bronchial tube alveoli ...
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