PHGY 209 Lecture Notes - Lecture 1: Solution, Walter Bradford Cannon, Microcirculation
15 Apr 2018
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Lecture 1: midterm oct 29 7-8:30, we can study physiology in different levels. Amoeba picks up o2 and wastes co2- unicellular organism: multicellular organism- there is only a minute fraction involved with the external environment. The majority of cells are at quite a great distance from the environment. The individual cells inside the body have their own environment surrounding the individual cells and the exchanges are between the cells in the internal environment first. Lets say we have a container of water that has 3l of water. % of water in various tissues: skin- 70, muscle- 75, heart, liver, brain, Kidney- 70-80: **bone- 25, **fat- 10% if the water content is computed as a fraction of. Lean body mass (excluding fat), the differences between individuals become insignificant: standard values for physiological reference individual- 21 years old, white male, 70kg- 60% water! Final concentration in body 100/42000=. 0024mg/ml: 70kg female- 35l water= 35000ml.
