LECTURE 12- MUSCLE STRUCTURE AND FUNCTION 2 Flashcards
1
Q
Action potential
A
Electrical event that occurs in the brain.
2
Q
Synaptic transmission
A
begins when an AP impulse reaches the synaptic knob of a presynaptic neuron.
3
Q
What is the NMJ?
A
Neuromuscular junction that acts a a chemical synapse (junction between two cells)
4
Q
Hyperpolarisation
A
Membrane potential becomes more negative at one spot on neuron membrane.
5
Q
Depolarisation
A
Membrane potential becomes more positive at one spot on neuron membrane.
6
Q
What is acetyl choline?
A
It is a neurotransmitter that initiates AP in muscle fibers.
7
Q
What is a Cholinergic synapse?
A
Synaptic process that uses ACh as neurotransmitters.
8
Q
Synaptic cleft
A
Gap between pre and postsynaptic cells.
