If You Are in a Low Stress-Level Situation,and You Experience

question 111

Multiple Choice

If you are in a low stress-level situation,and you experience increases in salivation,constriction of the lungs,contraction of the bladder,and an activation of the digestive tract,you know that your ______ nervous system is primarily responsible for these operations.

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

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Definitions:

Capillary Permeability

The ability of substances to pass through the tiny blood vessels known as capillaries, either entering or exiting the bloodstream.

Chemotaxis

Attraction of living protoplasm (cells) to chemical stimuli.

Vasodilation

Increased diameter of blood vessels.

Histamine

A compound released by cells in response to injury and in allergic and inflammatory reactions, causing contraction of smooth muscle and dilation of capillaries.