Sympathetic Responses Generally Are Widespread Because _

question 45

Multiple Choice

Sympathetic responses generally are widespread because _ .

• A)inactivation of ACh is fairly slow
• B)preganglionic fibers are long
• C)preganglionic fibers are short
• D)NE and epinephrine are secreted into the blood as part of the sympathetic response

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Definitions:

Bones

Rigid organs that constitute part of the endoskeleton of vertebrates, providing support, protection, and aiding in movement.

Joints

Connections between bones that allow for movement and provide mechanical support.

Cell Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, controlling the passage of substances in and out of the cell.

Muscle Fiber

The individual contractile cells of a muscle, composed of myofibrils and capable of producing force and movement.