Examlex
An observer in the Southern Hemisphere takes a time exposure photograph of the night sky. If the illustration below depicts the photograph taken by the observer, which direction was the camera pointing?
Synapse
The junction between two neurons or between a neuron and a muscle where impulses pass by diffusion of a neurotransmitter.
Postsynaptic Membrane
The postsynaptic membrane is the region of a neuron that receives neurotransmitters from another neuron across the synaptic gap, playing a crucial role in neuron-to-neuron communication.
Synaptic Vesicle
A small, spherical sac that contains neurotransmitters, located within the terminal buttons of neurons, and is responsible for releasing neurotransmitters into the synaptic cleft.
Micrometer
A precision instrument used to measure small distances or thicknesses between two points, typically used in engineering and machining.
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