Differentiate between chemical and nervous coordination with detailed explanation.....
Differentiate between chemical and nervous coordination with detailed explanation.....
Nervous VS Chemical Coordination Working unit:
Nervous system consists of neurons which are its fundamental units.
Chemical system consists of cells which produce hormones.
Site of action:
Chemicals produced by neurons act very close to their site of production.
Hormones can act far away from their site of production.
Examples
Acetylcholine is produced at the ends of nerves and act at the same site.
Thyroid glands produce thyroxin, T3 and T4 which act at peripheral tissues.
Number of Target cells:
Chemicals produced by neurons act at limited number of cells.
Hormones act at large number of cells that may be up to millions.
Onset of response:
Nervous system has immediate effect to response.
Hormones may have immediate effects like insulin or delayed effects like growth hormones.
Stimulation:
Nervous system is under control of electrical system.
Hormonal system is under control of chemical stimulation.
Impulse conduction:
Nervous system is under very fast. Speed of impulse is 100 meters per second.
Hormonal system is not very rapid.
Life span of chemicals:
Chemicals of nervous system have very short life span.
Hormones remain active for a longer period of time in blood.
Conclusion
Human body has got different organs whose functions are coordinated through nervous and endocrine system. Both have different chemicals, produced through different cells, act at different target areas and produce different results.
Working unit:
Nervous system consists of neurons which are its fundamental units.
Chemical system consists of cells which produce hormones.
Site of action:
Chemicals produced by neurons act very close to their site of production.
Hormones can act far away from their site of production.
Examples
Acetylcholine is produced at the ends of nerves and act at the same site.
Thyroid glands produce thyroxin, T3 and T4 which act at peripheral tissues.
Number of Target cells:
Chemicals produced by neurons act at limited number of cells.
Hormones act at large number of cells that may be up to millions.
Onset of response:
Nervous system has immediate effect to response.
Hormones may have immediate effects like insulin or delayed effects like growth hormones.
Stimulation:
Nervous system is under control of electrical system.
Hormonal system is under control of chemical stimulation.
Impulse conduction:
Nervous system is under very fast. Speed of impulse is 100 meters per second.
Hormonal system is not very rapid.
Life span of chemicals:
Chemicals of nervous system have very short life span.
Hormones remain active for a longer period of time in blood.
Conclusion
Human body has got different organs whose functions are coordinated through nervous and endocrine system. Both have different chemicals, produced through different cells, act at different target areas and produce different results.
