9.2 - Nervous Control

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File:NSdiagram.png (http://upload.wikimedia.org/wikipedia/en/0/0b/NSdiagram.png)

(http://www.southtexascollege.edu/nilsson/4_GB_Lecture_figs_f/4_GB_16_Homeostasis_Fig_f/ReflexArc_fig46_8.GIF)

Importance of reflex arcs

  • They are involuntary and therefore do not require the decision-making powers of the brain, leaving it free to carry out more complex responses. In this way, the brain is not overloaded with situations in which the response is always…

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