Activation of the Sympathetic Nervous System

question 80

Multiple Choice

Activation of the sympathetic nervous system

• A) speeds up heart beat and respiratory rate.
• B) increases the flow of watery saliva.
• C) stimulates peristaltic contractions of the intestinal system.
• D) slows heartbeat and lowers blood pressure.
• E) allows the body to relax rather than prepare for fight or flight.

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Definitions:

Phospholipids

A class of lipids forming the major component of cell membranes, consisting of a phosphate group, a glycerol backbone, and two fatty acid tails.

Plasma Membrane

A membrane made of two layers of lipids encircles the cell, managing how substances move into and out of it.

Intracellular

Located or occurring within a cell or cells.

Extracellular

Located or occurring outside the cell, often referring to the environment or substances in the space surrounding cells.