Examlex
What is responsible for the different blood types in humans?
Axon Hillock
The cone-shaped area of the neuron cell body from which the axon originates, crucial for the initiation of nerve signals.
Neurofibrils
Fine, thread-like structures within nerve cells that provide support and conduct electrical signals throughout the neuron.
Chemical Messenger
A substance, such as a hormone or neurotransmitter, that transmits signals from one cell to another.
Neurotransmitter
Chemicals released by neurons to transmit signals across a synapse to another neuron, muscle cell, or gland.
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