A Physician Orders a Computed Tomographic Scan for a 42-Year-Old

question 5

Multiple Choice

A physician orders a computed tomographic scan for a 42-year-old man after he is admitted to the emergency department with nausea, vomiting, and a headache that has progressively worsened throughout the day. A hemorrhagic lesion is revealed in the superior half of the cerebellum. Which of the following blood vessels primarily supplies this area of the cerebellum?

• A) Posterior inferior cerebellar artery
• B) Short circumferential branches of the basilar artery
• C) Superior cerebellar artery
• D) Vertebral artery
• E) Anterior inferior cerebellar artery

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Definitions:

Lime Muds

Fine-grained sediments composed largely of calcium carbonate, typically formed in marine environments where organisms such as coral or foraminifera are prevalent.

Carbonate Rocks

Sedimentary rocks, such as limestone, that are primarily composed of carbonate minerals, typically formed in marine environments.

Oxidation

Oxidation is a chemical reaction in which a substance loses electrons, often resulting in rust in metals or changes in rock minerals due to exposure to oxygen and water.

Iron-bearing Minerals

Minerals that contain iron as a significant component, often influencing the rock's color and magnetic properties.