Shannon Blinks as She Steps Off the School Bus and Walks

question 376

Multiple Choice

Shannon blinks as she steps off the school bus and walks into a gust of wind. This automatic reaction is regulated by the:

• A) spinal cord.
• B) lower part of her brain.
• C) hormonal activity in her body.
• D) hippocampus.

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Definitions:

Muscle

Tissue in the body composed of fibers capable of contracting to produce movement or maintain the position of parts of the body.

Visceral Pericardium

The innermost layer of the pericardium that lies directly on top of the heart; also known as the epicardium.

Fibrous Pericardium

The tough, outer layer of the pericardium that encloses the heart and roots of the great blood vessels, providing protection and anchorage.

Parietal Pericardium

The layer on top of the visceral pericardium.