Begin a discussion of the cardiovascular system with the anatomy of the heart. Discuss early philosopher's theories dealing with the function of the heart. View image diagrams of the location of the heart within the thoracic cavity, the mediastinum. Show how the heart is protected by the rib cage and rib muscles, the sternum, the large back muscles, and the ribs. Discuss why this is important for animals which walk upright. View diagrams of the pleural membranes and the fliud which helps prevent friction.
Analyze test results from respiration test, and discuss incorrect answers. Discuss and define edema, pulmonary edema and pneumonia. Show diagrams of alveoli filled with water, discuss how this will hinder absorption of oxygen into the capillaries and create a hypoxia. Discuss some causes of pneumonia and how they can be treated. Lead to the heart as a possible problem-
Complete questions from respiration unit in textbook. Present story of "Freddy freshman" who had much too much to drink at a party. Describe the physical results which occurred and what happened to him in the morning. Discuss exactly how and what anatomical sytstems were involved.
Test questions from anatomy and physiology test book which accompanies the text- Selected multiple choice questions and fill ins were to be answered. The text book could be used as a reference for some questions.
Lesson summary will be found on Tuesday's lesson outline.
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
As we progressed, the discussion went to the air quality which enters our lungs. We had a really good discussion around how environmental factors affect the air quality, which affects how well our lungs work. Andrew had some very interesting questions and answers
Discuss the nervous control of respiration. Introduce the inspiration centers in the medulla, how the lungs respond to stimuli, what baroreceptors are and how they function to prevent overinflation of the lungs. Describe the cycle of inspiration and how and why the system responds with a cough, sneeze, or hiccup.
Continue with the control of respiration throough the nervous and endocrine system. Outline and discuss the sequence of events in inhalation and exhalation. Discuss how the endocrine system will cause variations in rate due to fright and anger. Examine the role of the cerebal cortex in voluntary changing of respiratory rate. Discuss the anatomy and physiology of a cough, sneeze, and hiccup.
Discuss how humans can control the rate and force of respiration. Analyze how this can be through both nervous and chemical control. Review the anatomy and function of the medulla. Introduce the respiratory "center" and its control and function. Review the functions of adrenaline and concentrate on the effect on inspriration.
Introduce hypothetical cases of patients exhibiting dyspnea and hypoxia. Discuss and have Andrew research the definitions of both words. From the definitions and discussions, arrive at what might be the problem with the patient. Discuss pneumonia, asthma and premature birth lung problems.
