Psych exam 2 prep Flashcards Preview

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Flashcards in Psych exam 2 prep Deck (25)
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1

-Correlate w specific places
-let you know where you are going and where you currently are

place cells

2

-Are learned and used by your hippocampus
-stored in cortex

navigational maps

3

-The first step of neurotransmission
-Occurs on dendrites and soma

Input

4

- occurs at the axon hillock
- Is the second step of neurotransmission

Trigger

5

Every neuron has it's own unique action potentials

true

6

- come in many sizes and types
- Are found in the CNS + PNS (whole body)

neurons

7

- are the neuron's cell body
- Can be round or triangle shaped

Soma

8

- extend from the soma
- Have 99% of excitatory receptors

Dendrites

9

- Contain large numbers of sodium channels
- Connects the soma and axon

axon hillock

10

- the long skinny part of a neuron
- is what the action potential travels down

Axon

11

- A chemical produced by a neuron that acts on another neuron
- ex: dopamine

Neurotransmitters

12

- Not released by neurons but works on them
- Ex: CCK and galanin

Neuroactive substances

13

- is a small peptide hormone
- targets hypothalamus

CCK

14

- a neuroactive substance
- released during brown fat breakdown

Galanin

15

- has 3 million neurons and does neurogenesis
- shaped kind of like 2 bananas

hippocampus

16

- is the normal state of a neuron, at rest
negative 100mV

resting membrane potential

17

- open when absolute threshold is met
- are voltage-gated channels

channels of the axon hillock

18

your brain uses 20% of your glucose intake

true

19

- is an excitatory neurotransmitter
- causes increase in sodium

acetylcholine

20

- is an energy source
- adenosine Tri Phosphate

ATP

21

- comes from ATP being broken down
- used as a neurotransmitter in brainstem
- makes you tired when there is a lot

adenosine

22

- mimic naturally occuring neurotransmitter
- produces same effect as chemical

agonist

23

- binds to receptor but does nothing

antagonist

24

- is 15% of people who initially go in for treatment of anxiety
- looks like anxiety

caffeinism

25

Neurotransmission has 4 steps

false