the neuron Flashcards
at the temporal lobe within the hippocampus campus as they are the cellular basis for learning and memory
which force that allow flow across the neuronal cell membrane?
chemical force (diffusion force): ion channels, ion movements and ion pumps
match the forves at the cell membrane wirh is correct defintion
A) electrical force
B) chemical force
a) opposites attracr
b) concentration gradient
- **electrical force: **opposite attract
- chemical force: concetration gradient
choose the correct type of ions in teh extracellular space of neurons:
- Sodium (Na+)
- Magnesium (Mg2+)
- Hydrogen (H+)
- Phosphate (PO43-)
- A-
- Bicarbonate (HCO3-)
- Chloride (Cl-)
- Iron (Fe2+)
- Zinc (Zn2+)
- Calcium (Ca2+)
- Copper (Cu+ or Cu2+)
- Nitrate (NO3-)
- Sulfate (SO42-)
- Potassium (K+)
- Ammonium (NH4+)
- Hydroxide (OH-)
na+, k+, ca2+, cl-, a-
what is synaptic plasticity?
- The capacity of synapses to regenerate and repair after injury or damage.
- A phenomenon where synaptic vesicles release neurotransmitters at a faster rate in response to repeated stimulation.
- The ability of neurons to modify the strength of their connections.
- The process by which neurotransmitters are removed from the synaptic cleft to terminate synaptic signaling
- The modulation of synaptic transmission by astrocytes, glial cells that provide support to neurons in the brain.
The ability of neurons to modify the strength of their connections.
can connection between neurons change?
NO.
can be modified in term of potential but not change.
“neurons that fire together stay together”
diffusion forces play a role in…
balancing the outer and inner membrane regarding the concentration of ions
junction between two axons terminals is called:
* synapse
* nexus
* cleft
* gateway
syhnapse
the presynaptic neuron relases a…..
* inhibitory neurotransmitter
* methylphenidate neurotransmitter
* exitatory neurontransmitter
* grid cell neurotransmitter
- exitatory neurontransmitter
glutamate
action potentials fire when….
a) whenever the neuron wants
b) the membrane has all the sensory information needed to created a code
c) membrane reaches a concentration gradient treshold
d) when the postsynaptic neuron have sent a sing to to the presynaptic one saying that she is ready to receive the action potential
c) membrane reaches a concentration gradient treshold
the exitatory neurotransmitter that binds to ligand-gated channels that conduct sodium is:
* dopamine
* acethylcohine
* histamine
* glutamate
* serotonine
* ATP
glutamate
the cellular basis for leraning is called..
Long term potentiation
cellular basis for for forgetting is called…
Long-term depression
choose the characteristics that make refernce to LTP
* low-intensity firing
* strengthening synapse
* neurons firing together
* presynaptic neuron not firing enough glutamate
* connection becomes weaker
* decreased expression of postsynaptic AMPA receptors
* long-lasting process
* more AMPA receptors added to the postsynaptic neuron
* high levels of glutamate released
strengthening synapse
neurons firing together
long-lasting process
more AMPA receptors added to the postsynaptic neuron
high levels of glutamate released
calcium binds to ….. receptors
* AMPA
* Kainate
* NMDA
* Glycine
* 5-HT3
* P2X
NMDA
NMDA are blocked by which type of ion:
* sodium
* calcium
* potassium
* magneusium
* chloride
magneisum
removed when calcium binds to NMDA receptor and depolirized her
