A New Brain-Scanning Technique Called Diffusion Spectrum Imaging Allows Neuroscientists

question 235

Multiple Choice

A new brain-scanning technique called diffusion spectrum imaging allows neuroscientists to:

• A)produce three-dimensional images of the neural pathways that connect one part of the brain to another.
• B)use electromagnetic techniques to examine blood flow in the brain.
• C)trace the metabolism of radioactive glucose in the brain.
• D)examine the structure of the brain using combined X-rays.

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Definitions:

Superior Mesenteric Vein

A large vein that drains blood from the small intestine, cecum, and part of the colon and pancreas into the hepatic portal vein.

Splenic Vein

A vein that drains blood from the spleen, pancreas, and portions of the stomach, emptying into the portal vein.

Hepatic Portal Vein

A blood vessel that carries nutrient-rich blood from the gastrointestinal tract and spleen to the liver for processing.

Osmotic Pressure

The pressure required to prevent the flow of a solvent across a semipermeable membrane, which separates solutions of different concentrations.