Anatomy Physiology
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1. What is the homeostatic value of flexor reflexes? Homeostasis is defined as ôThe condition in which the body's internal environment remains relatively constant, within limitsö (ôGlossary Human BiologyùIntroductionö). ôReflexes help to maintain homeostasis by permitting the body to make exceedingly rapid adjustments to homeostatic imbalancesö (ôThe Spinal Cord and Spinal Nervesö). When a sensory stimulus threatens the homeostatic state of an organism, an involuntary neural response to the stimulusùa reflexùoccurs (Winter 59). An example of such a protective reflex is the flexor withdrawal reflex, which is also known as the ôouchö reflex; it is designed to protect us from such pain-associated dangers as burning our hand on a hotplate. As soon as we perceive pain, we withdraw our hand from the hotplate. As the most powerful flexion response, this reflex takes precedence over other reflexes, such as those associated with locomotion, ostensibly to protect the limb from further damage (ôSharpen Your Reflexesö). Pain is not the only stimulus that provokes the protective reflex; it can also be stimulated with deep pressure, as when standing on a pebble
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Reflexesö Pain, Frey Donlin, Receptorö Odor, Spinal Nervesö, Retrieved August, Anatomy Physiology, Human BiologyùIntroductionö, august 28, 28 2005, retrieved august, retrieved august 28, august 28 2005, olfactory receptors, MJ Chemistry, Sharpen Reflexes, frey donlin 2002, olfactory epithelium, donlin 2002, frey donlin, Cord Spinal, ôolfactory receptorö, flexor withdrawal reflex, spinal cord, receptor site, spinal cord spinal,
Approximate Word count = 794
Approximate Pages = 3 (250 words per page)
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