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Flashcards in ch.27 Deck (22):
1

The term for various areas in the body with different fluid composition

fluid compartments

2

Two sources of body water

preformed (ingested) and metabolic

3

Part of the brain where the thirst center is located

hypothalamus

4

Percent of total body water that is intracellular fluid

65%

5

The term for tissue (interstitial) fluid, plus plasma & lymph, plus transcellular fluids

extracellular fluid

6

Stimulating this is the only way to actually increase body water; all other regulatory mechanism can at best only reduce the loss of water

thirst center (and drinking)

7

Loss of water and salts, proportionately (such as with hemorrhage).

hypovolemia

8

Loss of water but not salts; body fluids become more concentrated

dehydration

9

excess water intake, dilutes body fluids resulting in hyponatremia

hypotonic hydration (water intoxication)

10

A problem in which total body fluid might be normal, but blood volume is too low - from edema commonly, as in anaphylactic shock

fluid sequestration

11

This is the most abundant cation in the ICF

K ions

12

This is the most abundant cation in the ECF.

Na ions

13

Excess sodium in blood

hypernatremia

14

Although low in both ECF and ICF, calcium is higher in the ...

ECF

15

Phosphate is higher in (ICF or ECF)

ICF

16

High blood potassium level, can alter cell polarity and excitability - even stop the heart.

hyperkalemia

17

This ion, whether in excess or deficiency, can be associated with making nerve and muscle cells less excitable.

potassium

18

Deficiency of calcium, can cause tetany

hypocalcemia

19

In an ionic molecule, if the cation is hydrogen, the molecule is a(n) _____.

acid

20

In an ionic molecule, if the cation is anything but hydrogen, the molecule is a(n) _____.

salt

21

This ICF cation can be shifted with pH imbalances; acidosis shifts it out of cells, and alkalosis shifts it into cells.

potassium

22

The fast, deep breathing of someone with metabolic acidosis.

Kussmaul respiration