The Brainstem and Cerebellum Receive Most of Their Blood Supply

question 17

Multiple Choice

The brainstem and cerebellum receive most of their blood supply from which of the following arterial branches?

• A)Internal carotid and posterior cerebral
• B)Vertebral and middle cerebral
• C)Vertebral and basilar
• D)Internal carotid and basilar

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Definitions:

Phosphorus Sink

An ecosystem or part of an ecosystem that absorbs more phosphorus than it releases, often leading to phosphorus accumulation.

Mineable Phosphate Rocks

Rock formations that contain substantial amounts of phosphate minerals, which are mined for use as fertilizers and other chemical products.

Marine Sediments

Deposits of organic and inorganic particles that accumulate on the ocean floor.

Denitrification

The conversion of nitrate (NO3) to nitrogen gas (N2) by certain bacteria (denitrifying bacteria) in the soil; part of the nitrogen cycle.