What is a body fluid?
What percentage of a healthy adults body weight is made up of fluid?
What is 50-70%
What are 2 key functions of water?
To maintain blood volume and regulate body temperature.
What part of the brain regulates thirst?
What is the hypothalamus
What is the DRI for total water intake for adult men?
3.7 liters/day (15.5 cups)
Name some symptoms of dehydration
Thirst, dry mouth, fatigue, dizziness, headache, dark urine
What defines a body fluid?
What is a substance composed of freely moving molecules that conform to the shape of its container
What is through sweating and heat loss from the skin.
What causes sensation of thirst?
What are the concerns with energy drinks?
High caffeine and sugar content; can dehydrate and affect heart rate.
Name some causes of a heat stroke?
Prolonged heat exposure, dehydration, and lack of sweat regulation
What are the 2 main fluid components in the body?
What is intracellular and extracellular
How does water protect the body tissues?
What is it cushions organs and acts as a lubricant (ex: joints, eyes).
Name 5 ways we lose fluids
What is urine, sweat, evaporation, exhalation, and feces.
What is sodiums primary role?
What is "it helps regulate fluid balance and blood pressure."
Which of the following foods is a good source of potassium?
A. White bread
B. Banana
C. Cheese
D. Chicken breast
What is B
Name 6 major minerals
What is sodium, potassium, chloride, phosphorus, calcium, magnesium
How do electrolytes influence muscle contraction?
What is the difference between sensible and insensible water loss?
Sensible is measurable (urine, sweat) and insensible is not easily measured (evaporation, breathing).
What is hypernatremia?
What is high blood sodium levels; can cause high blood pressure and other issues.
What causes water intoxication in the body?
A. Excessive loss of sodium through sweating
B. Drinking too much water too quickly, diluting sodium levels in the blood
C. Not drinking enough water during physical activity
D. Consuming too many salty foods without water
B
What is by tissue type, gender and age.
What is osmosis?
What is the movement of water through a semipermeable membrane from low to high solute concentration.
Name at least 1 example of a condition that increases water loss?
What is illness, fever, diarrhea, vomiting, exercise, hot weather.
What is hypokalemia?
Low blood potassium levels.
What is the primary function of extracellular fluid in the body?
A. To transport oxygen to tissues
B. To regulate blood pressure
C. To provide nutrients and remove waste from cells
D. To store energy for later use
C