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Figure 21-30. Micrograph of an axon terminal obtained by the rapid-freezing deep-etch technique.

Figure 21-30Micrograph of an axon terminal obtained by the rapid-freezing deep-etch technique

Note the fibers, largely composed of synapsin, that interconnect the vesicles and also connect some to the active zone of the plasma membrane. Docked vesicles are ready to be exocytosed. Those toward the center of the terminal are in the process of being filled with neurotransmitter. [From D. M. D. Landis et al., 1988, Neuron 1:201.]

From: Section 21.4, Neurotransmitters, Synapses, and Impulse Transmission

Cover of Molecular Cell Biology
Molecular Cell Biology. 4th edition.
Lodish H, Berk A, Zipursky SL, et al.
New York: W. H. Freeman; 2000.
Copyright © 2000, W. H. Freeman and Company.

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