What is the differnce between chemical control and nervous control ?

Asked by urveasa1977 | 9th Aug, 2009, 03:32: PM

Expert Answer:

Nervous system uses electrical impulses for its functioning whereas endocrine system uses chemical communication.

Nervous system is very fast and rapid in its action whereas hormonal mechanism is much slower.

Nervous coordination is limited to only those regions which are connected by nerves. In endocrine system, the hormones are released through blood and do not require any specialised cells to transmit its message. So chemical coordination can take place throughout the body. Feedback mechanisms play an important role in hormonal control.

Nerve cells cannot continuously create and transmit electrical impulses. After each impulse, the cell needs time to reset its mechanism. Chemical communication on the other hand can be done steadily and persistently.

Answered by  | 9th Aug, 2009, 05:54: PM

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