Examlex
If you find that the H-alpha line in a star's spectrum occurs at a wavelength of 656.45 nm, what is the star's radial velocity? Note that the rest wavelength of this line is 656.30 nm.
Myelin
A fatty substance that surrounds neurons' axons, facilitating faster transmission of electrical signals.
Receptor Site
A receptor site is a specific location on a cell surface where certain molecules, such as hormones or neurotransmitters, bind to trigger a change in the cell's function or activity.
Myelin
A fatty substance that forms a sheath around the axons of many neurons, helping to speed the conduction of nerve impulses.
Synaptic Vesicles
Membrane-bound sacs in the axon terminal of neurons that store neurotransmitters to be released at the synapse.
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