What are the differences between the endocrine system and nervous system?
Posted December 6, 2023
Basis of differentiation |
Endocrine system |
Nervous system |
Definition |
Is made up of various glands and organs that produce hormones to regulate different functions of the body |
Is made up of a network of cells that regulate and coordinate different bodily functions by transmitting nerve impulses |
Main constituents |
Main constituents include the pituitary, adrenal, and thyroid glands, male testes, and female ovaries |
Main constituents include nerve cells, which are arranged in the brain, spinal cord, and peripheral nerves |
Functions
|
Controls growth and development, metabolism, sleep, emotions and mood, fertility and sexual function |
Controls senses, thoughts and feelings, muscle movements, memory, heartbeat, breathing, senses, speech, and response to various stimuli |
Types of substance used to transmit signals to the effector organ |
Uses chemical substances called hormones |
Uses electric impulses and chemical substances called neurotransmitters |
Mode of signal transmission |
Signals in the form of hormones are transmitted through the blood |
Signals in the form of nerve impulses are transmitted through nerve cells |
Signal transmission pathway |
Hormones enter target cells by diffusing through the plasma membrane or by binding to the cell receptors |
Nerve impulses enter target cells using neurotransmitters at synaptic clefts or through sodium and potassium channels |
Time taken for the transmission |
Transmission is slow as the signals move slowly through the blood |
Signals are transmitted rapidly |
Type of control
|
Under voluntary and involuntary control |
Under involuntary control only |
Connectivity |
The entire endocrine system is not physically connected |
The entire nervous system is physically connected |
Effect of responses |
Responses are widespread |
Responses are localized |
Function is affected by |
Function may be affected by age, environmental factors, stress, genetics, and disease conditions |
Function may be affected by meningitis, multiple sclerosis, or cancers |