Exam 1- chapter 2 Flashcards Preview

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Flashcards in Exam 1- chapter 2 Deck (34):
1

CNS

brain and spinal cord

2

PNS

Somatic and autonomic branches

3

soma

cell body

4

dendrites

branches that receive messages from other neurons

5

axon

trunk of neuron that sends messages to other neurons

6

axon terminals

buds at end of axon from which chemical messages are sent

7

synapses

small gaps that separate neurons

8

brain stem

basic functions
contains hindbrain, midbrain, thalamus, and hypothalamus

9

forebrain

higher-order functions-sensory, emotional, cognitive processing

contains limbic system, basal ganglia, cerebral cortex

cerebral cortex contains two specialized hemispheres (L & R) (4 lobes with each)

10

hindbrain

regulates autonomic processes
medulla, pons, cerebellum

11

medulla

heart rate, blood pressure, respiration

12

pons

regulates sleep stages

13

cerebellum

involved in physical coordination

14

midbrain

coordinates mvmt with sensory input
contains parts of the reticular activating system (RAS)

15

limbic system

involved in emotional processing, aggression
thalamus and hypohalamus

16

thalamus

receives and integrates sensory info

17

hypothalamus

eating drinking aggression sexual activity

18

basal ganglia

though to partially control motor activity

19

frontal lobe

thinking and reasoning abilities, memory

20

praietal

touch recognition

21

occipital

integrates visual input

22

temporal

recognition of sights and sounds, long-term memory storage

23

somatic branch

controls voluntary muscles and mvmt

24

autonomic branch

involuntary processes
sympathetic and parasympathetic branches
regulates cardiovascular system and body temp
regulates endocrine system and aids in digestion

25

endocrine system

regulates release of hormones

26

HPA axis

integration of endocrine and nervous system function

27

NT agonists

increase the activity in the NT by mimicking its effects

28

NT inverse agonists

produce effects opposite to a given neurotransmitter

29

NT antagonists

inhibit or block the production of NT or function indirectly to prevent the chemical from reaching the next neuron by closing or occupying the receptors

30

types of NT

serotonin
glutamate
gamma aminobutyric acid (GABA)
norepinephrine
dopamine

31

serotonin

influences info processing, behavior, mood and thoughts
unreged my contribute to depression
low=instability and impulsivity

32

norepinephrine

involved in alarm responses and basic bodily processes (ex: breathing)

33

dopamine

implicated in depression and ADHD
link btwn excessive dopamine and schizophrenia
link btwn reduced dopamine and Parkinson's disease

34

types of learning

social learning
learned helplessness
respondent and operant learning
conditioning and cognitive processes
prepared learning