Renal Physiology

Which of the following is not a function of the kidneys?

• Maintenance of water and electrolyte balance

• Regulation of acid-base balance

• Production of digestive enzymes

• Excretion of waste products

Which hormone produced by the kidneys stimulates RBC production?

• Aldosterone

• Erythropoietin

• Vasopressin

• Renin

The kidney converts vitamin D into its:

• Inactive form

• Storage form

• Active form

• Protein-bound form

The enzyme renin plays an important role in regulating:

• Blood glucose

• Blood pressure

• Temperature

• Acid secretion

The process by which the body maintains equilibrium is called:

• Osmosis

• Homeostasis

• Diffusion

• Filtration

The body is considered an “open system” because it:

• Does not exchange materials

• Exchanges materials and energy with surroundings

• Only absorbs energy

• Only loses water

The body maintains a constant internal environment known as:

• Milieu intérieur

• Intracellular space

• External balance

• Chemical potential

The total daily input of water in a steady state is approximately:

• 2,100 ml

• 2,300 ml

• 3,000 ml

• 1,500 ml

The metabolic production of water contributes about:

• 100 ml/day

• 200 ml/day

• 400 ml/day

• 800 ml/day

Insensible water loss occurs through:

• Sweat glands

• Urine

• Lungs and skin

• Feces