Chapter 9 Respiratory System
Gas exchange
Photosynthesis
6 CO2 + 6 H2O + ENERGY = SUGAR + O2
Respiration
SUGAR + O2 + ENERGY = 6 CO2 + 6 H2O
Diagram of the Respiratory system:
Function:
Deliver O2 and expel CO2
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Lecture Notes on Respiratory System - Human Biology |, Study notes of Human Biology
Material Type: Notes; Class: Human Biology; Subject: Biology / Biological Sciences; University: Lees-McRae College; Term: Forever 1989;
Typology: Study notes
Pre 2010
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Chapter 9 Respiratory System Gas exchange Photosynthesis 6 CO2 + 6 H2O + ENERGY = SUGAR + O Respiration SUGAR + O2 + ENERGY = 6 CO2 + 6 H2O Diagram of the Respiratory system: Function: Deliver O2 and expel CO
inside the alveoli: mucus sits on cilia cilia: finger-like hairs · together they function as getting rid of foreign bodies in the lungs. Pulmonary surfactant: reduces surface tension> keeping the alveoli open and not flattened -prevents spontaneous atelectasis In the big picture of what happens in the lungs (the two most important things that happen in the respiratory system): · Ventilation moves air in and out of the lungs · Gas exchange at alveolus Figure 9- 4 oxygens per hems hundreds of hemoglobins per red blood cells. Signs and Symptoms: · dyspnea: difficulty breathing ------- acute · coughing: dry cough> mucus free & productive cough> bringing up mucus ------ acute · clubbing: Pleural Cavity vacuum > negative pressure