HPRM-205 Lecture Notes - Lecture 10: Homeostasis, Goitre, Hemoglobin
22 Aug 2018
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Document Summary
Major - essential nutrients required in amounts greater than 100 mg/day. Trace - essential nutrients required in amounts less than 100 mg/day. Most vital to our health, our cells can"t live without water. Makes up about 60% of adult body weight. Soft tissues contain a lot of water. Water is also incorporated into the chemical structures of the body (eg. proteins hold water) and it participates in many chemical reactions. Solvent - helps to dissolve substances, such as amino acids, glucose, etc. Cleansing agent - wastes dissolve in the watery blood of the body. Lubricant and cushion - protects joints, spinal cord, fetus, lubricates eyes. Coolant - helps maintain body in the right temperature. Dehydration is imbalance; body restores balance as quickly as possible. Thirst is the first sign of dehydration. 1% loss of water: headache, fatigue, elevated heart rate. Need to stay attuned to thirst and drink whenever thirsty. Elderly at risk: do not perceive thirst message.
