The Walls of Veins Are Thinner Than Those of Corresponding

question 44

Multiple Choice

The walls of veins are thinner than those of corresponding arteries, because ________.

• A) veins contain a lower proportion of smooth muscle fibers
• B) of only arteries can perform vasoconstriction
• C) veins contain a greater proportion of elastic fibers and collagen
• D) blood pressure is higher in veins
• E) the lumen of veins is much smaller than the lumen of arteries of similar diameter

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Definitions:

Mechanical Energy

The sum of potential energy and kinetic energy present in the components of a mechanical system.

Electrical Energy

The form of energy resulting from the flow of electric charge, transferred through conductive materials or space, and capable of being converted into other forms of energy like heat or light.

Motor

A device used to convert electric energy into mechanical energy.

Field Loss Relay

A protective device in electrical engineering that detects the loss of magnetic field in a generator and prevents generator damage by disconnecting it from the load or system.