Exam 2 Study Nervous System Cells Flashcards
1
Q
What generates the resting membrane potential?
A
- ) K+ leak channels
- ) Na+/K+ pump
- ) anionic molecules
2
Q
What are the parts of a Synapse?
A
Presynaptic membrane
postsynapti membrane synapti cleft
3
Q
Properties of Neurons
A
Excitability
Conductivity
Secretion
4
Q
How do you depolarize a neuron?
A
Let something that is positive into the neuron
5
Q
How do you hyperpolarize a neuron?
A
Let more chlorine into the neuron (negative)
6
Q
What does it mean if a neuron is excitable?
A
the neuron can be “turned on” or “turned off”
7
Q
How do you “turn on” a neuron?
A
depolarize the cell
8
Q
depolarization
A
decrease in potential; membrane less negative
9
Q
repolarization
A
return to resting potential after depolarization
10
Q
hyperpolarization
A
increase in potential; membrane more negative
