Psych neuroscience

Question 1

neuron

Answer 1

Basic functional unit of the nervous system

Question 2

structure of neuron

Answer 2

All neurons have similar structure + nucleus
Nucleus has the hereditary material that establishes how the cell will function
Cells are maintained by cellular gliales
Neurons can communicate between each other and transfer messages between each other wide scale

Question 3

Glial cells

Answer 3

Provides sustenance, isolates them assist to repair damages

Question 4

dendrite

Answer 4

receives neurotransmitters

Question 5

axon

Answer 5

fine tubular extensions that liberate neurotransmitters, is the longest part of the neuron and can reach up to 3ft

Question 6

axon terminal

Answer 6

end part of axon

Question 7

axon terminal details

Answer 7

Neurological messages are naturally electrical signals and can only go in one direction
Signals go from dendrite to the rest of the cell to the axon which then transfers to the next neuron
Axons are isolated to prevent short-circuiting

Question 8

myelin sheath

Answer 8

protective cover made out of fat and proteins that revolves around the axon to isolate it

Question 9

myelin sheath details

Answer 9

Increases firing rate speed
The more myelin the more urgent the message the axon is sending

Question 10

firing rate

Answer 10

amount of energy needed to activate a neuron

Question 11

firing rate details

Answer 11

Neurons turn on and off like 0 and 1 on computers, all or nothing
Needs enough energy to activate
State of rest is the moment before a neuron fires and has a negative charge near 70 millivolts
Has more negative ions inside than outside

Question 12

firing rate numbers

Answer 12

Neuron opens and closes super quickly and receives positive ions that are 100 million ions per sec
Sudden positive charge turns the negative charge inside a neuron to positive