Answered: What signals are sent around the body…

Science

Biology

What signals are sent around the body of a sprinter when he or she is about to start?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter39: Information Flow And The Neuron

Section: Chapter Questions

Problem 1TYK

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Concept explainers

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.

Question

What signals are sent around the body of a sprinter when he or she is about to start?

Start with the sound from the gun.

If a sprinter starts less than 0.1 second (one tenth of a second) after the start shot, he or she will be discarded.

Why is the rule like that?

Why do we call the nervous system a "signal system?"

Can you compare it to anything else?

Why is it especially important to protect the spine, for example in sports such as skiing and cross?

What can be the consequences of an injury to the spine?

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