Lesson 3 - Synaptic Transmission

Question 1

Synaptic Transmission

Answer 1

The process by which a nerve impulse passes across the synaptic cleft from the pre to post synaptic cleft. Once the action potential crosses the gap, it releases the neurotransmitters which then bind to special receptors, the effects then happen and can be terminated by re-uptake. The neurotransmitters then get stored for later release.

Question 2

Neuotransmitters

Answer 2

Carry signals to the post-synaptic neuron

Question 3

Inhibitory Neurotransmitters

Answer 3

calm the body

Question 4

Excitatory neurotransmitters

Answer 4

Cause electrical charge causing excitatory post-synaptic potential, making the cells more likely to fire.

Question 5

Inhibitory + Excitatory

Answer 5

A cells an receive both inhibitory and excitatory neurotransmitter but the sum of them determines the synaptic input.

Question 6

Summation

Answer 6

The net result of inhibitory neurotransmitters + excitatory transmitters.

Question 7

Spatial Summation

Answer 7

Generating a large amount of EPSPs generated at many different synapses on the same post-synaptic neuron at the same time.

Question 8

Temporal Summation

Answer 8

A large number of EPSPs are generated at the same synapse by a series of high-frequency action potentials by a pre-synaptic neuron.