Synaptic Transmission

Question 1

The ion necessary to
initiate the release of acetylcholine
into the synaptic cleft is?
A.sodium
B.potassium
C.calcium
D.chloride
E.zinc

Answer 1

C acetylcholine (choline) released due to chlorine

Question 2

EPSP means

Answer 2

excitatory post synaptic potential

Question 3

IPSP means

Answer 3

Inhibitory post synaptic potential

Question 4

Glutamate is what type of neurotransmitter

Answer 4

Excitatory

Question 5

Glycine is what type of neurotransmitter

Answer 5

Inhibitory within the spine

Question 6

GABA is what type of neurotransmitter

Answer 6

Inhibitory within the brain

Question 7

Acetylcholine is what type of neurotransmitter and what receptors does it activate

Answer 7

Excitatory; Nicotinic and Muscarinic receptors within PNS And CNS

Question 8

Dopamine plays what role

Answer 8

Executor of reward pathway

Question 9

Tryptophan is the precursor of what?

Answer 9

Serotonin

Question 10

Histidine is the precursor of what?

Answer 10

Histamine

Question 11

Tyrosine is the precursor of what?

Answer 11

Dopamine, Noradrenaline, Adrenaline

Question 12

Example of a peptide neurotransmitter

Answer 12

Opioids

Question 13

When a second EPSP arrives at a single synapse before the first effects have disappeared, what occurs
A. Spatial Summation
B. Temporal summation
C. Inhibition of the impulse
D. Hyperpolarization
E. Decrease in speed of transmission

Answer 13

A. As the sum of the two signals occurs simultaneously at the synapse SPATIAL summation occurs

Question 14

Integration means

Answer 14

Proccessing of information

Question 15

Divergence means

Answer 15

Number of neurons signal reaches increases

Question 16

Large number of presynaptic neurons providing input to a single post synaptic neuron is known as

Answer 16

Convergence

Question 17

Saltatory conduction occurs when

Answer 17

an axon is myelinated due to the insulation it brings

Question 18

Which of the following processes does
NOT cause
inactivation of neurotransmitter molecules from the
synapse?
A.precipitation into aggregates
B.diffuse out of the synaptic cleft
C.inactivated by enzymes
D.returned to axon terminals
E.transported into glial cells

Answer 18

A