Examlex
Which one of the following structures is most likely to demonstrate strong posterior shadowing?
Perineurium
A protective sheath of connective tissue that surrounds a bundle (fascicle) of nerve fibers within a nerve.
Postsynaptic Membrane
The region of a neuron that receives and responds to neurotransmitters from the presynaptic neuron during synaptic transmission.
Receptor
A specialized cell or group of nerve endings that responds to changes in the environment, such as chemicals, heat, or light.
Neurotransmitter
Chemicals released by neurons to transmit signals to other neurons or muscles, facilitating communication within the nervous system.
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