dot point 2

Question 1

Neural pathways

Answer 1

How neurons are arranged and where neural messages are transmitted

Question 2

Dendrites

Answer 2

Have receptor sites which receive messages from other neurons

Question 3

Axons

Answer 3

Transmit electrical impulses (action potentials) from cell body to other neurons

Question 4

Terminal buttons

Answer 4

where the neurotransmitters are stored and released from

Question 5

Neurochemicals

Answer 5

chemical substances that transmit neural information
Released from pre synaptic neuron -> travel to synaptic gap -> released to dendrites of postsynaptic neurons

Question 6

NEUROTRANSMITTERS

Answer 6

chemical molecules that have an effect on one or two postsynaptic neuron

Question 7

Glutamate

Answer 7

• The primary excitatory neurotransmitter which stimulates postsynaptic neurons to perform their functions (increases likelihood of firing an AP)
• Release of glutamate is associated with learning and memory
• Excitatory effects of glutamate form and strengthen synaptic connections between neurons, are repeatedly activated whilst learning
• Enables synaptic plasticity

Question 8

Too much glutamate?

Answer 8

Abnormally high concentrations of glutamate can result in overexcitation of receiving neurons causing neuronal damage and/or death

Question 9

GABA

Answer 9

• An inhibitory neurotransmitter which blocks, prevents or suppresses postsynaptic neurons from firing an AP
  Primary inhibitory neurotransmitter
• Regulates postsynaptic activation in neural pathways, preventing over-excitation of neurons
• Maintain neurotransmission
• Reduces anxiety
• Prevents seizures
• inhibits firing of action potential

Question 10

Low levels of GABA

Answer 10

Low levels of GABA means that it is hard to inhibit heightened awareness and activity, therefore causing anxiety