Nobody downloaded yet

Chemical Synapses - Essay Example

Comments (0) Cite this document
The transmission of information at chemical synapses involves the release of a neurotransmitter from a presynaptic cell, diffusion across the synaptic cleft, and binding of the neurotransmitter to specific receptors on the postsynaptic membrane to produce a change in membrane potential. …
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER98.7% of users find it useful
Chemical Synapses
Read TextPreview

Extract of sample
"Chemical Synapses"

Download file to see previous pages The process that must occur in the presynaptic axon is a series of events that lead to release of a neurotransmitter. An action potential in the presynaptic cell causes Ca2+ channels to open. An influx of Ca2+ into the presynaptic terminal causes the neurotransmitter, which is stored in synaptic vesicles, to be released by exocytosis. The neurotransmitter diffuses across the synaptic cleft, binds to receptors on the postsynaptic membrane, and produces a change in membrane potential on the postsynaptic cell. The change in membrane potential on the postsynaptic cell membrane can be either excitatory or inhibitory, depending on the nature of the neurotransmitter released from the presynaptic nerve terminal. If the neurotransmitter is excitatory, it causes depolarization of the postsynaptic cell; if the neurotransmitter is inhibitory, it causes hyperpolarization of the postsynaptic cell.
Local currents depolarize each adjacent region to threshold. Finally, the presynaptic terminal is depolarized, and this depolarization causes voltage-gated Ca2+ channels in the presynaptic membrane to open. When these Ca2+ channels open, the Ca2+ permeability of the presynaptic terminal increases, and Ca2+ flows into the terminal down its electrochemical gradient. Ca2+ uptake into the terminal causes release of the neurotransmitter acetylcholine (ACh), which has been previously synthesized and stored in synaptic vesicles. To release ACh, the synaptic vesicles fuse with the plasma membrane and empty their contents into the synaptic cleft by exocytosis. ACh is formed from acetyl coenzyme A (Acetyl CoA) and choline by the action of the enzyme choline acetyltransferase. ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Chemical Synapses Essay Example | Topics and Well Written Essays - 500 words”, n.d.)
Chemical Synapses Essay Example | Topics and Well Written Essays - 500 words. Retrieved from
(Chemical Synapses Essay Example | Topics and Well Written Essays - 500 Words)
Chemical Synapses Essay Example | Topics and Well Written Essays - 500 Words.
“Chemical Synapses Essay Example | Topics and Well Written Essays - 500 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
Image available at: A nerve cell is composed of a cell body, dendrites, nucleus, axon, axon terminals, nodes of Ranvier, and synapse (Mosby 26). Cell body of a nerve cell is the area where the nucleus is contained.
4 Pages(1000 words)Essay
Chemical Dependency
In current years, "chemical dependency and eating disorders" have turn out to be gradually more prevailing in the United States of America. (Yager) These disorders influence all civilizations, age-group, socioeconomic category and mutually men and women. This investigation was done to assess the probable affiliation amid chemical dependency and eating disorders.
3 Pages(750 words)Essay
Time and Temporality
Mutually related, time and temporality are dissimilar and distinct. Whereas time pertains to passage or flow of moments that occur currently, temporality is connected to the concept of the present, the past, and the future. Two reasons exist why time lacks objective reality: The metaphysical aspect suggests that the universe in monist where space is unitary.
3 Pages(750 words)Essay
Chemical compound
The widespread use of the mineral spirit especially in painting poses significant health risk to the people. This compound has fumes that are readily inhaled by an individual when using
1 Pages(250 words)Essay
Describe the impact of neuronal and neurotransmitter abnormalities on brain function
The most specific feature of neurons is that they able to transfer information from one cell to another within the whole human body by the instrumentality of electric impulses and chemical transmitters. Such system of information transportation is highly sensitive and delicate and in case there are any violations in neurons’ performance, serious brain disorders like Schizophrenia, Parkinson’s and Huntington’s diseases, Alzheimer’s, multiple sclerosis, and Down syndrome could develop.
6 Pages(1500 words)Essay
Nerve Impulse Transmission
While neurons are cells passing neural signals to target cells, synapses are the conjunctions between neurons enabling transmission. Thereby, each neuron has a great numbers of synapses on its surface, which can reach 10000. A typical
2 Pages(500 words)Essay
Sympathetic and Parasympathetic Nervous Systems
The autonomic nervous system comprises two antagonistic sets of nerves, the sympathetic and parasympathetic nervous systems. The sympathetic nervous system connects the internal organs to the brain by spinal nerves. When stimulated, these
3 Pages(750 words)Essay
Chemical Dependency
The smoking of marijuana increased across learners, including those of 8th, 10th and 12th grade, during the time between year 2009 and 2010. Among 12th grade students, the smoking of marijuana was at its peak, because 6.1 percent of school seniors consumed marijuana (UDHHS, 2010).
4 Pages(1000 words)Research Paper
Chemical sensor
Effective diagnosis and subsequent treatment glucose level borne diseases such as diabetes is dependent on proper monitoring and maintenance. The paper will explicitly discuss amperometric glucose sensors ad a biomedical device that integrates electrochemical
12 Pages(3000 words)Essay
Coordination and Control
The somatic system is responsible for conducting sensory and motor information towards and away from the CNS. It consists of nerves that connect to skeletal muscles, sensory organs, and
10 Pages(2500 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Chemical Synapses for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us