Certified Wildlife Rehabilitator Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

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What is the primary function of smooth muscle?

Support and protect internal organs

Line carious organs of the body

The primary function of smooth muscle is to line various organs of the body, particularly those within the digestive and circulatory systems. Smooth muscle is found in the walls of hollow organs, such as the intestines, bladder, and blood vessels. This type of muscle is responsible for involuntary movements, such as the contraction and relaxation that helps move food through the digestive tract or regulates blood flow in the arteries and veins. The smooth muscle's primary role is to create a rhythmic contraction that aids in the management of functions like digestion and circulation, distinguishing it from skeletal muscle, which is involved in voluntary movement. Thus, its presence lining these organs is crucial for maintaining the internal processes vital to the body's overall health and functionality.

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Facilitate voluntary movement

Transport blood throughout the body

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