A&P Ch. 25

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created 5 years ago by Sadie_Laughlin
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1

True or False:

Adipose tissue is one of the most hydrated of all tissues in the human body.

False

2

True or False:

Electrolytes determine most of the chemical and physical reactions of the body.

True

3

True or False:

The thirst center in the brain is located in the hypothalamus.

True

4

True or False:

It is impossible to over hydrate because people need as much water as they can drink to carry out ordinary body functions.

False

5

True or False:

Salts are lost from the body in perspiration, feces, and urine.

True

6

True or False:

Although the sodium content of the body may be altered, its concentration in the ECF remains stable because of immediate adjustments in water volume.

True

7

True or False:

When aldosterone release is inhibited, sodium reabsorption cannot occur beyond the collecting tube.

True

8

True or False:

Pressure diuresis decreases blood volume and blood pressure.

True

9

True or False:

To remain properly hydrated, water intake must equal water output.

True.

10

True or False:

Atrial natriuretic peptide reduces blood pressure and blood volume by inhibiting nearly all events that promote vasodilation and potassium and water retention.

False

11

True or False:

Heavy consumption of salt substitutes high in potassium can present a serious clinical problem when aldosterone release is not normal.

True

12

True or False:

The two hormones responsible for the regulation of calcium are pituitary hormone an calcitonin.

False.

13

True or False:

The normal pH of blood is 7.35-7.45.

True

14

True or False:

Weak acids are able to act as chemical buffering systems for the body because they partially dissociate.

True

15

True or False:

The single most important blood buffer system is the bicarbonate buffer system.

True

16

True or False:

Prolonged hyperventilation can cause alkalosis.

True

17

True or False:

Blood acidity results in depression of the CNS, whereas blood alkalosis results in overexcitement of the CNS.

True.