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What Are the Key Differences Between Hormonal and Neurotransmitter Signaling in Cells?
Hormonal Signaling:
Hormones are special chemicals that are released into the bloodstream.
They can reach and affect cells that are far away from where they were released.
The effects of hormones can last a long time, anywhere from a few minutes to several hours.
Usually, the amount of hormones in the blood is very small, measured between 1 billionth to 10 billionths of a mole (that's super tiny!).
Neurotransmitter Signaling:
Neurotransmitters are chemicals that are released at the junctions between nerve cells, called synapses.
These mainly affect cells that are close by.
The effects of neurotransmitters happen really quickly, often in just milliseconds to seconds.
They are present in higher amounts than hormones, usually ranging from 1 millionth to 1 thousandth of a mole.
Key Differences:
Distance: Hormones are like long-range messengers that can travel far, while neurotransmitters work like local messengers that only talk to nearby cells.
Duration: Hormones have effects that last a while, but neurotransmitters act fast and their effects disappear quickly.
Concentration: Hormones are found in lower amounts compared to neurotransmitters, which are present in higher amounts when they send their messages.
What Are the Key Differences Between Hormonal and Neurotransmitter Signaling in Cells?
Hormonal Signaling:
Hormones are special chemicals that are released into the bloodstream.
They can reach and affect cells that are far away from where they were released.
The effects of hormones can last a long time, anywhere from a few minutes to several hours.
Usually, the amount of hormones in the blood is very small, measured between 1 billionth to 10 billionths of a mole (that's super tiny!).
Neurotransmitter Signaling:
Neurotransmitters are chemicals that are released at the junctions between nerve cells, called synapses.
These mainly affect cells that are close by.
The effects of neurotransmitters happen really quickly, often in just milliseconds to seconds.
They are present in higher amounts than hormones, usually ranging from 1 millionth to 1 thousandth of a mole.
Key Differences:
Distance: Hormones are like long-range messengers that can travel far, while neurotransmitters work like local messengers that only talk to nearby cells.
Duration: Hormones have effects that last a while, but neurotransmitters act fast and their effects disappear quickly.
Concentration: Hormones are found in lower amounts compared to neurotransmitters, which are present in higher amounts when they send their messages.