Compare and contrast nervous and hormonal mechanisms for control

The nervous system helps us to communicate with the outside world, and also controls different mechanisms occurring inside our body. The nervous system receives the information, processes it, and triggers reactions. The neurons help in transmitting signals.

On the contrary, hormones diffuse through the plasma membrane of the target cells and bind a receptor protein in the cytoplasm of the cell. This binding initiates a series of events that leads to the generation of secondary messengers. These secondary messengers trigger a series of molecular interactions that alter the physiological state of the cell. This process is also known as signal transduction.

The difference between nervous and hormonal mechanisms for control are as follows:

Nervous Mechanism

Hormonal Mechanism
Nerves cells take part in it.

Endocrine glands take part in it.

The signals travel quickly and the response is quick.

The signals travel slowly and the response is slow.
Signals travel along the neurons.

Signals are transmitted through blood.

The effects are short-lived.

The effects are prolonged.
Signals are transferred in the form of electrical impulses.

Signals are transferred in the form of chemicals called hormones.

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Further Reading:

Mechanism of Hormone Action


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