Welcome, my name is Robert Rojas and I am an undergraduate MCD Biology Research Student Scientist at the University of California Santa Cruz
"THOSE WHO DARE TO FAIL MISERABLY CAN ACHIEVE GREATLY" -JFK
In this web page, you will find a little about me and as you scroll down I will generally explain concepts that revolve around MCD Biology topics.
Check out my first program @ "HI THERE"
- I am currently a fourth year student at UCSC
- I am majoring in MCD Biology
- I dream of one day obtaining my Ph.D
- I currently volunteer in a research lab on campus
- My favorite past times consist of sports, video games, exploring, meeting new people, reading up on research and food.
- Relevant classes I have taken include: Cell Biology, Developmental Biology, Neuroscience, Microbiology, Genetics, Biochemistry, Molecular Biology, and Yeast Genetics
Topic: Neuroscience: Synaptic Transmission
(More topics and explantions will be discussed monthly.)
- The synthesized neurotransmitters are packaged into vesicles.
- When an action potential invades a presynaptic terminal, depolarization of the neuronal cell causes opening of the Voltage-gated Calcium Cation Channels.
- This creates an influx of calcium cations(due to concentration differences between outside and inside of the cell), which rushes in rapidly.
- The increase of calcium within the neuronal cell terminal causes vesicle fusion with the membrane of the cell.
- Once the vesicle fuses with the membrane, neurotransmitters are then released into the synaptic cleft. (Release process known as exocytosis)
- Next, neurotransmitters in the synaptic cleft may bind to recptors on postsynaptic cells.
- This opens or closes postsynaptic channels, allowing postsynaptic current to flow into the post synaptic cell.
- Neurotransmitters are typically removed by glial cell reuptake or enzymatic degradation.
- Retrival of the membrane is completed through a process called endocytosis.
Refrences:Basic Neurochemistry: Molecular, Cellular and Medical Aspects
For any further help, suggestions on topics, comments, and/or concerns, emails are warmly welcomed.