Quiz 2

Question 0

Gap junctions are

Answer 0

Rare and not flexible

Question 1

What is the difference between spatial and temporal summation?

Answer 1

Spatial- many neurons converge

Temporal- one neuron

Question 2

Neurotransmitters can be either _____ or _____

Answer 2

i) simple

ii) complex

Question 3

What are the 4 criterias for a Neurotransmitters

Answer 3

Need a receptor site
Need to be stored in pre-synaptic
Have to produce it experimentally
Way to stop the function of NT

Question 4

What are the three types of Neurotransmitters?

Answer 4

Amino acids
Amines
Peptide and Gases

Question 5

Examples of amino acids

Answer 5

GABA- inhibitory (frontal control system)
Glutamate- excitatory (memory function)
Aspartate- excitatory

Question 6

What are the examples of amines

Answer 6

Dopamine, epinephrine, norepinephrine, serotonin and acetylcholine

Question 7

What does dopamine do?

Answer 7

Can be inh or excitatory
Important for learning and pleasure
Nigrostriatal dopaminergic pathway (Parkinson’s)

Question 8

What does norepinephrine do?

Answer 8

Fight or flight

Same pathway as dopamine

Question 9

What does acetylcholine do?

Answer 9

Regulates HR
FIGHT OR FLIGHT
muscle contraction
Memory function —altered level in dementia

Question 10

Examples of peptide gases

Answer 10

Substance P
Cytokines
Oxytocin