level 1 revision

Question 1

functions of nervous system

Answer 1

• detection of change
  
  • food
  • danger
  • mates

Question 2

object recognition

Answer 2

identification of stimulus

Question 3

stimulus localisation

Answer 3

identifying where stimulus comes from

Question 4

glutamate and its receptors

Answer 4

= excitatory NT involved in EPSP

AMPA
NMDA

Question 5

GABA and its receptors

Answer 5

= inhibitory NT involved in IPSP

Cl channels → hyperpolarisation

Question 6

long term depression

Answer 6

activity-dependent reduction in the efficacy of neuronal synapses lasting hours or longer following a long patterned stimulus

Question 7

long term potentiation

Answer 7

persistent strengthening of synapses that leads to a long-lasting increase in signal transmission between neurons.

Question 8

action potential propagation

Answer 8

depolarisation = influx of positive ions = less negative
followed by refractory period where ion channels are temporarily inactive
repolarisation phase where normal negatuve potential of membrane is restored (-70mV)
followed by the next depolarisation when a stimulus occurs