The patient was admitted to the hospital for severe dehydration. Explain what changes occur in extracellular and intracellular fluid compartments during dehydration.
What will be an ideal response?
Fluid volume deficit occurs when the body loses both water and electrolytes from the extracellular fluid compartment. Fluid is initially lost from the intravascular compartment. Then fluid is drawn from the interstitial compartment into the intravascular compartment, depleting the interstitial compartment. To compensate for the decreased volume, the body then draws intracellular fluid out of the cells. This could lead to collapse and death.
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The physiological significance of mitochondrial cristae is they
a. provide more surface area across which electrons can be transported. b. provide a histological cue to enable organelle identification. c. decrease the volume of the matrix, thereby increasing the concentration of its components. d. decrease the volume of the matrix, allowing cells to economize on the production of its components. e. None of these.
Cardiac muscle is found in the ________
A) capillaries B) blood vessels C) blood vessels, capillaries, and heart D) heart
Trace the pathway of an image formed on the retina to the primary visual cortex in the brain
What will be an ideal response?
If the field diameter of the high-powered objective is 0.5 mm, what is the field diameter of this objective in µm?
A) 500 ?m B) 0.005 ?m C) 50 ?m D) 0.05 ?m