Psych exam 2 prep Flashcards
- Correlate w specific places
- let you know where you are going and where you currently are
place cells
- Are learned and used by your hippocampus
- stored in cortex
navigational maps
- The first step of neurotransmission
- Occurs on dendrites and soma
Input
- occurs at the axon hillock
- Is the second step of neurotransmission
Trigger
Every neuron has it’s own unique action potentials
true
- come in many sizes and types
- Are found in the CNS + PNS (whole body)
neurons
- are the neuron’s cell body
- Can be round or triangle shaped
Soma
- extend from the soma
- Have 99% of excitatory receptors
Dendrites
- Contain large numbers of sodium channels
- Connects the soma and axon
axon hillock
- the long skinny part of a neuron
- is what the action potential travels down
Axon
- A chemical produced by a neuron that acts on another neuron
- ex: dopamine
Neurotransmitters
- Not released by neurons but works on them
- Ex: CCK and galanin
Neuroactive substances
- is a small peptide hormone
- targets hypothalamus
CCK
- a neuroactive substance
- released during brown fat breakdown
Galanin
- has 3 million neurons and does neurogenesis
- shaped kind of like 2 bananas
hippocampus
- is the normal state of a neuron, at rest
negative 100mV
resting membrane potential
- open when absolute threshold is met
- are voltage-gated channels
channels of the axon hillock
your brain uses 20% of your glucose intake
true
- is an excitatory neurotransmitter
- causes increase in sodium
acetylcholine
- is an energy source
- adenosine Tri Phosphate
ATP
- comes from ATP being broken down
- used as a neurotransmitter in brainstem
- makes you tired when there is a lot
adenosine
- mimic naturally occuring neurotransmitter
- produces same effect as chemical
agonist
- binds to receptor but does nothing
antagonist
- is 15% of people who initially go in for treatment of anxiety
- looks like anxiety
caffeinism
Neurotransmission has 4 steps
false
