sehs option d1: 2 – water and electrolyte balance
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SEHS Option D1: 2 – Water and electrolyte balance. Why is water essential to humans? (and all living things). Is a universal solvent (all metabolic reactions take place in water (cytoplasm, plasma) Helps regulate body temperature - PowerPoint PPT PresentationTRANSCRIPT
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SEHS Option D1: 2 – Water and electrolyte balance
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Why is water essential to humans? (and all living things)
• Is a universal solvent (all metabolic reactions take place in water (cytoplasm, plasma)
• Helps regulate body temperature• Enables the transport of substances essential
for growth (primarily through the blood plasma)
• Allows for exchange of nutrients and metabolic end products
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State where extracellular fluid can be located throughout the body
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Compare water distribution in trained and untrained individuals
• Generally speaking:
• Trained people have a greater overall percentage of their make-up as water, vs the untrained. WHY?
• (THINK HYDROPHOBICALLY)
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What is homeostasis?
• The monitoring of internal conditions (temp, pH, salinity, blood glucose, sodium…etc) and correcting via negative feedback mechanisms
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Homeostasis & Water Balance• Excretory system (Urinary System) fundamentals
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The Kidney and Nephron (multicellular functional unit)
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Nephron - Ultrastructure
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How the nephron creates urine: general scheme
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How blood is processed to make urine
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How the nephron creates HYPERTONIC urine
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The additional role of ADH in maintaining water balance in your blood
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How would you as an athlete, or as a trainer – monitor your athletes hydration status?
• 1. Urine color
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• 2. Urine osmolarity
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• 3. Variation in body mass loss•
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Explain why endurance athletes require a greater water intake
• Do I have to?
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Discuss the regulation of electrolyte balance during acute and chronic exercise• Electrolyte - are minerals in the blood (and other body
fluids) that carry an electric charge, such as sodium, potassium and calcium
• Acute exercise - an exercise that is short-lived.Are meant to be less strenuous exercises for a shorter amount of time. Ex. It could be half an hour on the cross trainer or a few minutes skipping.
• Chronic exercise - refers to continued exercise over a long period of time