Questions and Answers
What are hormones?
What are neurotransmitters?
Chemical messengers that cross the synaptic gaps between neurons.
Neurotransmitters belong to the endocrine system.
False
Transmission of neurotransmitters is across the ______, whereas that of hormones is by blood.
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How are hormones produced?
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The action of neurotransmitters is extremely fast, which could be up to ______ milliseconds.
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Which statement reflects the difference in speed and duration between neurotransmitters and hormones?
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What do hormones regulate?
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Study Notes
Hormones
- Chemical substances released by cells into extracellular fluids
- Function to regulate metabolic processes in other cells
- Produced by the endocrine system
Neurotransmitters
- Chemical messengers that transmit signals between neurons
- Cross synaptic gaps to bind to receptor sites on receiving neurons
- Influence the likelihood of generating a neural impulse in the receiving neuron
Comparison: Neurotransmitter vs. Hormone
- Neurotransmitters are part of the nervous system, while hormones are part of the endocrine system
Transmission Methods
- Neurotransmitters transmit signals across the synaptic cleft
- Hormones are transmitted through the bloodstream
Production Sources
- Hormones are produced by endocrine glands
- Neurotransmitters are synthesized by neurons
Speed of Action
- Neurotransmitter action is rapid, occurring in milliseconds
- Hormonal effects can last longer, ranging from seconds to days
Regulation Targets
- Hormones regulate specific target organs
- Neurotransmitters stimulate postsynaptic membranes, affecting adjacent neurons
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Description
Test your knowledge on the differences between neurotransmitters and hormones in this informative quiz. Discover their definitions, functions, transmission methods, and speed of action. Understand how these chemical messengers play crucial roles in both the nervous and endocrine systems.
