Examlex
What is the form of vitamin K that is produced by bacteria present in the large intestine called?
Neurotransmitter
A chemical within the vesicles of the synaptic knob that is released into the postsynaptic structures when a nerve impulse reaches the synaptic knob.
Synaptic knob
The expanded region at the end of an axon terminal, where neurotransmitters are released to communicate with other neurons or muscle cells.
Interneuron
A type of neuron that communicates only with other neurons, typically found within the central nervous system and plays a role in reflexes and neuronal circuits.
Arachnoid mater
A delicate membrane that is one of the three layers (meninges) surrounding the brain and spinal cord, providing protection.
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