nervous system

Question 1

pruning

Answer 1

synaptic connections and neurons are eliminated

Question 2

sprouting

Answer 2

growth of axon and/or dendritic spines

Question 3

rerouting

Answer 3

new connections formed between neurons to establish alternative neural pathways

Question 4

dopamine and serotonin

Answer 4

dopamine has both inhib and exci effects, it’s produced in the VTA, and reward pathway activates memory regions and increases motivation

serotonin is an inhib NT which acts like a NM and more than 80% of it is found in the gut

Question 5

differnces in NT and NM

Answer 5

notes

Question 6

fight flight changed vs freeze

Answer 6

notes

Question 7

dendrites

Answer 7

receive input from other neurons

Question 8

axon terminals

Answer 8

release signals into the synapse

Question 9

process of neurotransmission

Answer 9

• Neural impulse runs from dendrites down the axon and to the axon terminals
• Terminal buttons release a chemical substance
• The chemical substance (NT) crosses the synapse
• The NT is then picked up by the receiving from via the dendrites

Question 10

acute vs chronic

Answer 10

Acute stress: stress that is brief and produces a high arousal that is intense.
Chronic stress: long lasting and is less intense and can be harmful to health

Question 11

positives and negative effects of cortisol

Answer 11

pos;
- adaptive as it gives us energy to combat a stressor
- blocks activity of white blood cells to act as an anti inflammatory

neg;
- suppresses immune
- retards tissue repair so slows wound healing

Question 12

alarm reaction

Answer 12

shock: lower ability to deal w stressor

counter shock: fight-flight-freeze response and first release of cortisol

Question 13

threat

Answer 13

future harm

Question 14

loss/harm

Answer 14

lose something and already occurred damage