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ANATOMY AND PHYSIOLOGY > Fluid & Electrolyte/Acid-Base > Flashcards

Fluid & Electrolyte/Acid-Base Flashcards

1
Q

Water

A

makes up 55%-75% of the total body weight

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2
Q

Electrolytes

A

the + & - ions present in body fluids

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3
Q

Each type of ion has a

A

specific function in body fluids

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4
Q

Water Compartments (2)

A
  • Intracellular fluids (ICF)

- Extracellular fluids (ECF)

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5
Q

-Intracellular fluids (ICF)

A

2/3 of the total body water is the water within the cells

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6
Q

Extracellular fluids (ECF)

A

1/3 of the total body water is the water outside of the cells

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7
Q

Examples of ECF

A
  • plasma
  • lymph
  • tissue fluid
  • specialized fluids
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8
Q

Define Water compartments

A

-fluid sites in the body

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9
Q

water constantly moves from one fluid site to another by the processes of

A

filtration & osmosis

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10
Q

osmosis example

A

tissue fluid enters the cells

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11
Q

filtration example

A

plasma is forced out of the blood into the tissue spaces becomes tissue fluid

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12
Q

Define Osmosis

A

the diffusion of H2O through a semi-permeable membrane

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13
Q

Define Osmolarity

A

the concentration of osmotically active particles in a solution

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14
Q

Water will move through cell membranes to areas of

A

greater electrolyte concentration

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15
Q

The ______ of electrolytes present in the various water compartments will determine the amount of ______ that will take place

A

concentration

osmosis

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16
Q

If the H2O is in balance in all of the compartments

A

the electrolytes are in balance

17
Q

The relative proportion of H2o to electrolytes remains

A

constant

18
Q

Water intake we need

A

1600mls/day

19
Q

Water intake

A
  • Food also contains water; ~700mls/day
  • Metabolic water, a product of cell respiration ~200mls/day
  • Total intake ~2500mls/day =2.5L/day
20
Q

Most of the water output is in the form of urine produced by the kidneys . How much

A

1500mls/day

21
Q

Sweat

A

500mls/day

22
Q

Water vapor in exhaled air

A

300mls

23
Q

Feces

A

200mls

24
Q

Total

A

2500mls

25
Q

Water intake =

A

Water output

26
Q

Hypothalmus contains

A

osmoreceptors

27
Q

Osmoreceptors

A

detect change in the osmolarity of body fluids

28
Q

Dehydration stimulates

A

the thirst sensation

29
Q

ADH released from the pituitary gland increases

A

the reabsorption of water by the kidneys

30
Q

Aldosterone secreted by

A

the adrenal cortex increases

31
Q

the adrenal cortex increases

A
  • the reabsorption of Na+ions by the kidneys

- H2O reabsorbed by osmosis

ANATOMY AND PHYSIOLOGY (10 decks)

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