Neuro Power Point 2

Question 1

3 states of a neuron

Answer 1

Resting : -65mV
Excitatory: -45mV, Na+ influx
Inhibitory : -70 mV, Cl influx and K efflux

Question 2

ExitaTory receptor in the postsynaptic membrane

Answer 2

1- Depolarization of post synaptic cell
2- opening of Na+ channels
Neurotransmitters include : Ach, norepinephrine, epinephrine, dopamine, glutamate, and serotonin

Question 3

Exitatory postsynaptic neurotransmitters include

Answer 3

Epinephrine, norepinephrine, dopamine, Ach, glutamate, serotonin

Question 4

Inhibitory postsynaptic potentials

Answer 4

Hyperpolarization of postsynaptic cell
Opening of K or CL channels
Include Y-Aminoglutyric acid( GABA and glycine

Question 5

What is spatial summation ?

Answer 5

Several nerve terminals fire at aprox. Same time .