Bow Covers. Bow covers snap over the entire front open-bow area of your boat and can serve several purposes. Use them for storage to protect from UV rays and rain, or snap them in place to create a âclosed-bowâ effect on your boatâwhich is helpful when boating in the rain or cold weather.ow Covers. Bow covers snap over the entire front open-bow area of your boat and can serve several purposes. Use them for storage to protect from UV rays and rain, or snap them in place to create a âclosed-bowâ effect on your boatâwhich is helpful when boating in the rain or cold weather.
Neurotransmitters are stored in a synapse in synaptic vesicles, clustered beneath the membrane in the axon terminal located at the presynaptic side of the synapse. Neurotransmitters are released into and diffused across the synaptic cleft, where they bind to specific receptors in the membrane on the postsynaptic side of the synapse.
In a neuron, synaptic vesicles (or neurotransmitter vesicles) store various neurotransmitters that are released at the synapse. The release is regulated by a voltage-dependent calcium channel.ith the advent of modern electron microscopic techniques in the early 1950s, nerve endings were found to contain a large number of electron-lucent vesicles. The term synaptic vesicle was first introduced by De Robertis and Bennett in 1954.