STUDENT NAME:BioLab3Respiratory System Lab Report Name, date, course and section required for password: The lab report is unique each semester and checks have been put into place to ensure...

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STUDENT NAME: BioLab3 Respiratory System Lab Report Name, date, course and section required for password: The lab report is unique each semester and checks have been put into place to ensure students are doing their own work. Copying from other students or from outside sources will result in a zero on the accompanying lab quiz. I. Human Respiratory Anatomy 1. Explain the connection of functions between the respiratory system and the circulatory system. A. Anatomy of Human Respiratory System 1. Examine the diagrams of the upper respiratory system and add a location and function of each respiratory structure: Structure Location Function of Upper Respiratory Structures Nasal cavity Hard palate Soft palate pharynx epiglottis larynx Vocal cords Trachea or windpipe 2. Look through the diagrams of the lower respiratory system and add a description of each respiratory structure. Structure Description of Lower Respiratory Structures Bronchus Bronchioles Alveoli ducts Alveoli Lungs Diaphragm External intercostals External intercostals B. Alveolar Tissue 1. In Ex 3, look at the microscopic view of an alveolus. Explain what might happen if the alveoli space was filled with fluid. II. Fetal Pig Anatomy 1. What is the path of air after the nostrils? 2. In the fetal pig why are the lungs flat and deflated? 3. Label the parts of the fetal pig thoracic cavity below. A. B. C. D. E. III. Ventilation 1. Read through A Inspiration, B Expiration, and C Pressure Relationships in the Thorax and fill out the comparison of inspiration and expiration. Respiration term Inspiration Expiration Movement of gases Passive, relaxed breathing Forced breathing Thoracic cavity Movement of ribs Pressure in pleural sacs and lungs Volume in pleural sacs and lungs Process is termed 2. In EX 6, view the Bell jar demonstration. What part of the bell jar corresponds to your lungs? 3. What happens in the bell jar when the diaphragm E moves down? IV. Spirometry A. Lung Volumes and B. Lung Capacities- refer to spirogram 1. Complete the chart comparing 4 mutually exclusive lung volumes and two lung capacities A. Lung Volume Explanation Average volume ml Tidal Volume (TV) Inspiratory Reserve Volume (IRV) Expiratory Reserve Volume (ERV) Residual Volume (RV) B. Lung Capacities Formula for this capacity Total Vital Capacity (VC) Total Lung Capacity (TLC) 2. Ex 8, complete the data table of the 12 students: Student name age Height sex VC in ml Jordan (smoker) 28 Elmer 42 Melissa 20 Jaime 28 Paola 19 Alexandria 22 Elsy 22 Kristen (smoker) 20 Muhamed 49 Jacqueline 50 Laura 19 Joe (smoker) 22 View the video demonstration of a spirometer. Construct a graph showing the relationship between vital capacity (Y axis) and age (X axis) for all 12 students. Label your axes. Sign, date, and prepare an image of your graph, and include it with your lab report. INSERT YOUR GRAPH HERE a. From your graph what is the relationship of VC to age? b. Is there a correlation of VC to height? c. Is there a correlation of VC to sex (gender)? d. Is there a correlation to smoking? V. Control of respiration 1. If you are “winded” and have to stop and “catch your breath” you have a buildup of what gas in the blood? 2. This is the most important stimulus that controls 3. Ex 9, follow instructions and record your results below: Activity Steps 1-4 Ave.# breathes/min CO2 levels up, down, same 1. Respiratory rate at rest 2. Hyperventilation 3. Hold your breath, record how long in seconds 4. Run in place 2 min. then hold breath, record how long in seconds Summary Questions 1. Follow the path of breath from nostrils to alveoli and name the respiratory structures that comprise the airway. 2. Where is the interface between the respiratory and circulatory systems and what happens at that site? 3. What is the location and function of the diaphragm? 4. Name the four lung volumes which, when combined, give the total lung capacity. 5. During which ventilation action is there no contraction of rib muscles but simple relaxation. Highlight correct answer. a. Restful Inspiration b. Forced Inspiration c. Passive Expiration d. Forced Expiration A C B D E © 2022 Access Learning Systems FA22 7