Homeostasis, pH, Core Body Temp and Body Fluid (23 cards)

25/04/2024, 19:54 Anki Glossary: Semester 1 > [BL] Body Logistics > 01.Homeostasis, pH, core body temp and body fluid (23 cards) 1. Define Homeostasis Maintaining internal balance. Sameness, Stasis 2. What is % of water in a standard human male? 60% 70kg 3. Compare the water balance in males and females, Males higher TBW% than females because elderly and infants. (Total Body Weight percentage females more adipose tissue. of water TBW%) Elderly lower TBW% than infants because more adipose tissue in elderly. 4. Explain concepts of negative and positive feedback Negative feedback loop inhibits future production. loops. (eg trying to cool down) Positive feedback loop promotes future production. (eg blood clotting platelets) 5. Normal range of core body temperatures? 36.5-37.5 Celcius (varies based on sleeping or awake etc) 6. Normal range of pH values? 7.35-7.45 pH 7. Describe broadly mechanisms that control pH Respiratory balance- Lungs remove CO2 from blood which increases pH. Metabolic balance- Kidneys can adjust how much reabsorption of H+ ions and bicarbonate ions by pancreas exocrine. 8. Describe broadly mechanisms that control body Sweating, vasodilation temperature. Shivering, vasoconstriction, piloerection 9. What percentage water in standard human male 60% is water in normal male. 70kg weight? 10. Amount of water in females compared to males? Male higher TBW%, females have more adipose Elderly compared to infants? tissue. TBW%=TotalBodyWater% Elderly have more adipose tissue than infants, so lower TBW% than infants who have less adipose tissues. 11. What happens to cells if not enough water and Cells absorb water from interstitial space. what do they do? Cell sacrifice to provide water to others. What if there wasnt enough water around? What When tissues die, water absorbed from organs, happens then? When organs die, water absorbed from brain, living then lastly kidney and heart. 12. What is Osmolality? Concentration of a solution, expressed by total number of solute particals per KG of solution. 13. How is Osmolality measured? Osmoles/kg or milliOsmoles/kg (mOsm/kg) file:///E:/Program Files/Anki/Exports/Semester 1__[BL] Body Logistics__01.Homeostasis, pH, core body temp and body fluid.html 1/3 25/04/2024, 19:54 14. Anki Glossary: Semester 1 > [BL] Body Logistics > 01.Homeostasis, pH, core body temp and body fluid (23 cards) What is Oedema? What causes it? Fluid retention. Causes swollen limbs. Hydrostatic pressure > Osmotic pressure due to plasma proteins in interstitial space, so water moves into interstitial space out of capillary and doesn't return back into vessel (lack of osmotic pressure). Or could be plasma proteins in blood is low so water moves into tissues 15. 16. What does Isotonic mean and how does it affect Isotonic: same conc of water between the inside cells? and outside of membrane. No water movement. What does Hypertonic mean and what happens to Hypertonic: more water conc inside cell, solute cells? conc is lower inside so water moves out of cell. Cell shrinks and dies. 17. What symptoms at core body temperature of >46C Heat Exhaustion and what is it's name? Unconsiousness/Seizures Confused/Restless Headache Dizzy Uncomfortable 18. What symptoms at core body temperature of Heat Stroke 46>x<40C and what is it's name? Flushed dry skin Hot skin Strong pulse 19. What symptoms at core body temperature of Fever 40>x<37.5C and what is it's name? Pale sweaty skin Stomach cramps Arm and Leg cramps 20. What symptoms at core body temperature of Mild Hypothermia 36.5>x<32C and what is it's name? Conscious Shivering Fatigue Slurred Speech Confusion/Forgetfulness Stiff muscles 21. What symptoms at core body temperature of Severe Hypothermia 32>x<28C and what is it's name? No more shivering Rigid muscles Very slow weak pulse Drowsy Severe reduction in response levels file:///E:/Program Files/Anki/Exports/Semester 1__[BL] Body Logistics__01.Homeostasis, pH, core body temp and body fluid.html 2/3 25/04/2024, 19:54 22. Anki Glossary: Semester 1 > [BL] Body Logistics > 01.Homeostasis, pH, core body temp and body fluid (23 cards) What symptoms at core body temperature of <28C No Vital Signs and what is it's name? Unconscious Dilated pupils No pulse Appearance of Death NOTE: Not dead until WARM AND DEAD (can still be alive after warming!) 23. What volume of blood should an average 70kg 5Litres male have? file:///E:/Program Files/Anki/Exports/Semester 1__[BL] Body Logistics__01.Homeostasis, pH, core body temp and body fluid.html 3/3