A Sharpshooter in a War Combat Zone Is Monitoring a Busy

question 265

Multiple Choice

A sharpshooter in a war combat zone is monitoring a busy street for his enemy target.He will have only one chance to take out his target;thus,he is scanning the street with extreme vigilance.The activity of which neurotransmitter is underlying his alertness?

• A)GABA
• B)endorphins
• C)dopamine
• D)norepinephrine

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Definitions:

Cardiorespiratory Fitness

The level at which the heart, lungs, and muscles work together during exercise for an extended period.

Target Heart-rate

The optimal heart rate zone for maximizing cardiovascular benefits during exercise, usually a percentage of your maximum heart rate based on age.

Maximum Heart Rate

The highest number of heartbeats per minute during maximum physical exertion.

Rockport Walk Test

A fitness test designed to estimate an individual's aerobic capacity and cardiovascular fitness by measuring the time it takes to walk a mile as fast as possible.