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Ch06 - About VPHY3100 Carefully read Dr Lis About VPHY3100...

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Wells/VPHY3100 About VPHY3100… Carefully read Dr. Li’s “About VPHY3100” PPT! My contact information Dr. Wells [email protected] 706-202-8715 Room 2216 Vet Med Bldg My PPT lectures will be available on eLC at least 24 hours in advance You are responsible for reading the entire chapter prior to the first lecture associated with that chapter My office hours By appointment (Mon & Fri before class works best) Email me well in advance to schedule an appointment I am available after class for only 5 minutes
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Wells/VPHY3100 About VPHY3100… Sign & hand in your Quiz Form (available on eLC) this week Optional Honors Paper UGA Honors Option form must be signed by an instructor & returned to the university within the first 10 days of the semester VPHY3100 Honors Paper form (available on eLC), with topic , must be signed by an instructor by no later than Sept. 11th
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Wells/VPHY3100 About VPHY3100… Pop quizzes will occur at the end of the class period. There will be no make-ups. Rain Check Policy Some questions are “rain checks”, but others are not Please raise your hand Rain check = 8.5 x 11 sheet of paper with date, question, answer, and my signature (get at end of class) Retain your rain check until the end of the semester Only one rain check per student per semester
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CHAPTER 6: Interactions Between Cells & the Extracellular Environment K. Wells VPHY3100: Elements of Physiology Dept. Physiology & Pharmacology College Vet. Med.
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Wells/VPHY3100 Lecture outline The cell: inside & out The extracellular environment Movement through the cell membrane: diffusion & osmosis Movement through the cell membrane: carrier-mediated transport Movement via vesicular fusion The membrane potential Cell signaling
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The cell FIGURE 3.1
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http://catalog.nucleusinc.com/generateexhibit.php?ID=14600 http://www.biochem.mpg.de/en/rd/fromherz/publications/99vasfro/ http://original.britannica.com/eb/art-56763/ Some real cells…
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Wells/VPHY3100 The cell: inside & out The cell Cytoplasm Cytosol Organelles Nucleus Cell (or plasma) membrane The extracellular space FIGURE 3.2 Inside of cell Outside of cell
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Wells/VPHY3100 Lecture outline The cell: inside & out The extracellular environment Movement through the cell membrane: diffusion & osmosis Movement through the cell membrane: carrier-mediated transport Movement via vesicular fusion The membrane potential Cell signaling
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Wells/VPHY3100 The extracellular environment The cell membrane acts as a physical barrier between the cytoplasm (inside of the cell) and the extracellular fluid (ECF, outside of the cell) Living organisms are ≥ 70% water by weight! Total body water is divided between: Intracellular compartments (~67%) Extracellular compartments (~33%) 20% as vascular fluid (blood plasma) 80% as interstitial fluid (non-vascular “tissue fluid” that resides within the extracellular matrix)
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Wells/VPHY3100 Extracellular & intracellular compartments FIGURE 14.8
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The extracellular environment
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