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Flashcards in chapter 3 Deck (19)
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1
Q

biological foundations of behavior

A

theres a link between our brain and our emotions

2
Q

see through your ears

A

plasticity; when ur blind your brain enhances one sense to compensate for loss of another

3
Q

smells trigger emotions in the brain

A

only sense linked to memory

limbic system

4
Q

where are neurons found

A

brain and spinal cord

5
Q

what are neurons

A
  • they vary in shape
  • they’re the building blocks of the nervous system
  • they’re supported by gilial ceus that keep the neurons in shape and remove toxins
6
Q

structure of neuron

A
cell body 
dendrites (receivers)
axon 
axon terminal 
milan sheath (allows conduction to be quick and smooth) 
neurons dont touch
7
Q

why is yawning contagious

A
mirror neurons; 
found on both sides of the brain 
makes one feel empathy
people with autism don't have it 
sociopaths have 0 empathy
8
Q

3 types of neurons in the nervous system

A

sensory neurons
motor neurons
interneurons

9
Q

2 types of peripheral neurons

A

somatic; voluntary movement

autonomic; sympathetic (activation, arousal function)
and parasympathetic (slows down body processes)

together the sympathetic and the parasympathetic keep the body in balance… homeostasis

10
Q

resting potential

A

-70, the uneven distribution of - and + in the neuron

11
Q

what happens when the neuron is stimulated

A

the channels open and the sodium enters the neuron (+40)

12
Q

hyper polarization

A

k+ is pumped out in too many quantity (less than -70)

13
Q

absolute refractory period

A

during depolarization
the going down part of the chart
if the neuron is stimulated no action potential will happen until the process is done

14
Q

neurotransmitters

A

chemicals produced that carry messages from one neuron to another

15
Q

neurotransmitters

A

chemicals produced that carry messages from one neuron to another

16
Q

list all the key neurotransmitters and their functions

A

acetylcholine;

  • muscle actions, learning, memory
  • black widow venom (increase ace)
  • botox (decrease ace)
  • alzheimers (decrease ace)

GABA;
-anxiety (decrease)

Glutamate;
-excitatory, learning, memory

17
Q

list all the key neurotransmitters and their functions

A

acetylcholine;

  • muscle actions, learning, memory
  • black widow venom (increase ace)
  • botox (decrease ace)
  • alzheimers (decrease ace)

GABA;
-anxiety (decrease)

18
Q

nt and functions 2

A

Glutamate;
-excitatory, learning, memory

Norepinephrine;

  • stress, depression (decrease)
  • mania, excess happiness (increase)

Dopamine;

  • happy, pleasure, voluntary movement
  • parkinsons (decease)
  • schitzo ( increase)
19
Q

nt and functions 3

A

Seratonine

  • mood, attention
  • depression (decrease)
  • prozac (increase)

endorphins
-pain relief, natural panadol

Oxytocin

  • love, bonding
  • neurotransmitter and hormone at the same time
  • onset of lactation