In Response to a Threatening Stimulus, Blood Pressure Increases, Pupils

question 265

Multiple Choice

In response to a threatening stimulus, blood pressure increases, pupils dilate, and digestion stops. These responses reflect activation of the _____ nervous system.

• A)somatic
• B)sympathetic
• C)parasympathetic
• D)central

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Definitions:

Stalactites

Icicle-shaped formations that hang from the ceilings of caves, formed by the deposit of minerals from dripping water.

Calcite

A common and widely distributed mineral consisting of calcium carbonate (CaCO3), important in the formation of limestone and marble.

Stalactite

A conical or cylindrical cave formation that hangs from the ceiling of a cave and is composed mostly of calcium carbonate.

Travertine

A variety of limestone that is commonly concentrically banded and porous.