Fluids Week 11 lecture Flashcards

1
Q

How much of our body mass is made of H20

A

45-60%

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2
Q

How much of a babies body is water?

A

70-80%

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3
Q

What are the 2 compartments that organize water in our bodies?

A
Intracellular- 2/3rds water
* Cytosol inside cells
* Adipose tissue = H20 free- hydrophobic
*Muscle tissue= lots of water
Extracellular- 1/3rd water
*Intestinal fluid
*Plasma
* Lymph vessles - 3 liters
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4
Q

Over 24 hours how much CSF leaves through ventricles

A

20L
17L returns to body
3L collects in Lymph system

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5
Q

What are the 2 sources of water intake

A

Ingested - preformed H20

Metabolic water - made in body - 200L made by mitochondria

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6
Q

How much water is consumed in drinks

How much water is consumed in food

A

1600mL consumed drinks

700mL consumed food

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7
Q

How much water do we lose a day

A

2500ml

  • 1500mL urine
  • 500mL skin
  • 300 mL respiration
  • 200 mL feces
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8
Q

What are the small particles in fluid called

A

Solutes

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9
Q

What are the 2 main types of solutes

A

Non-electrolytes

Electrolytes

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10
Q

What type of bonds are in non-electrolytes

A

Covalent - do not dissociate in h20

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11
Q

What are the 2 most abundent types of non-electrolytes for homeostasis

A
  1. Gluclose

2. Urea

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12
Q

Describe osmosis

A

Osmosis is the movement of water or other solvent through a plasma membrane from a region of low solute concentration to a region of high solute concentration. Osmosis is passive transport, meaning it does not require energy to be applied.

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13
Q

What is urea

A

related to protein use/ amino acids

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14
Q

What type of bonds are in electrolytes

A

Ionic bonds- dissolve in h20

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15
Q

What are the 3 types on Electrolytes

A

Acids
Bases
Salts

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16
Q

Acids are electrolytes that…

A

give off hydrogen in H20 ex. HCl

17
Q

What is the difference between strong and weak acids

A

Strong acids - give off all H - cause durastic change in solution
Weak acids - do not give off all H

18
Q

0 on the pH scale means it is higher or lower in hydrogen concentration

A

Higher

19
Q

14 on the pH scale means it is higher or lower in the hydrogen concentration

A

Lower

20
Q

Bases are electrolytes that…

A

Give off OH- groups (Hydroxyl groups)

ex. KOH - potassium hydroxide

21
Q

Salts are electrolytes that…

A

Give off neither H or OH groups