Assignment Goals
Source Material
Student Instructions
Writing Prompt

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Assignment Goals

This assignment will help you sort out your understanding of diffusion and bulk flow as two separate processes, both of which influence gas exchange in the human respiratory system. You will construct a clear understanding of the structures and functions in the respiratory system as you explore various models showing how asthma causes pathological function.

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Source Material

Consult your textbook to learn about both normal lung function and asthma. It will be important to study your lecture notes and the following assignment before you construct your paragraph: Ch 14 p. 387-91, Ch 15, 439-42, Ch 17, 475-99 and p. 507. You may want to study Fig 17-26 a and d as you write your paragraph. Be sure you understand each of the terms you are to use before you write your answer to the problem.

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Source Material Resources: Respiratory system overview - assignment resource URL: http://sln.fi.edu/biosci/systems/respiration.html Lung anatomy and lung disease resources - Canadian Lung Association resources URL: http://www.lung.ca/copd/anatomy/normal.html Ventilation - Definitions and background information URL: http://www.usyd.edu.au/su/anaes/lectures/ventilation_clt/ventilation.html Ventilation and endurance performance - Good explanations describing ventilation within a context for athletic training. URL: http://www.krs.hia.no/~stephens/ventphys.htm

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Student Instructions

This assignment is worth 25 points: 5 points for completing all parts and 20 points based on your CPR score; your CPR text input counts for 6 points, your calibrations and reviews count for 5 points each, and your self-evaluation is worth 4 points.

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Writing Prompt

Students in a nursing program were assigned the task to model a health disability for one day. Two students decided to model asthma. Both pinched their noses shut with a nose clip. One decided to breathe only through a straw from McDonald’s all day. That straw was narrow and 15 inches long. The other decided to breathe through a 6 foot long vacuum cleaner hose all day (2 m long by 3 cm diameter).

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