Which Brain Imaging Technique Requires No Exposure to Radiation

question 34

Multiple Choice

Which brain imaging technique requires no exposure to radiation?

• A)PET
• B)SPECT
• C)MRI
• D)CAT

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Definitions:

Invertebrate Animals

Animals lacking a vertebral column, including species such as insects, mollusks, and crustaceans.

Protistan Ancestors

Refers to the early eukaryotic organisms from which modern protists, and indirectly all eukaryotic life, are believed to have descended.

Cnidarians

A phylum of aquatic animals that includes jellyfish, corals, and sea anemones, characterized by a simple body structure with a single opening and a body wall made of two layers of cells.

Flagellated

Describes cells or organisms that have one or more whip-like appendages used for movement.