How Would Decreased Diffusion Across the Arachnoid Granulations Affect the Volume

question 200

Multiple Choice

How would decreased diffusion across the arachnoid granulations affect the volume of cerebrospinal fluid in the ventricles?

• A)Decreased diffusion across the arachnoid granulations would decrease the volume of CSF in the ventricles because less CSF would reenter the bloodstream.
• B)Decreased diffusion across the arachnoid granulations would decrease the volume of CSF in the ventricles because more CSF would reenter the bloodstream.
• C)Decreased diffusion across the arachnoid granulations would increase the volume of CSF in the ventricles because less CSF would reenter the bloodstream.
• D)Decreased diffusion across the arachnoid granulations would increase the volume of CSF in the ventricles because more CSF would reenter the bloodstream.
• E)Decreased diffusion across the arachnoid granulations would not change the volume of CSF because the amount of CSF reentering the bloodstream can accommodate for the changes.

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Definitions:

Steady State

A condition where the variables (such as concentration of substances) in a system remain constant over time despite ongoing processes that attempt to change them.

Homeostatic Response

The process by which organisms regulate internal conditions, such as temperature and pH, to maintain a stable internal environment.

Set Point

The target value that a system regulates towards, such as the human body's regulation of temperature or glucose levels.

Stressor

Any biological, chemical, physical, or psychological factor that causes stress or strain to an organism.