Quiz #4 Flashcards
1
Q
How do neurons communicate intracellularly?
A
Electrical, fast and simple.
2
Q
How do neurons communicate intercellularly?
A
Chemical, slow and complex.
3
Q
What does semipermeable membrane mean?
A
Cell walls of neurons allow only certain things to go through, while others like sodium is not.
4
Q
If a neuron is at resting potential, and Na+ ion channel opens, Na+ions will?
A
They will enter the cell.
5
Q
What helps maintain the resting potential of the neuron?
A
Na+-K pumps.
6
Q
What causes Excitatory Post Synaptic Potential (EPSP)?
A
Na+ exiting a neuron.
7
Q
The large proteins ions inside a neuron are positively or negatively charged?
A
Negatively charged.
8
Q
Which will increase the likelihood that a neuron will fire an action potential, IPSP or EPSP?
A
EPSP will increase
IPSP will decrease
