Motor Unit Flashcards
1
Q
Memory method
A
MANSAY ALL
2
Q
M
A
Motor unit= motor neuron and muscle fibres it stimulates
3
Q
A
A
Action potential (electrical impulse) travels down motor neuron to
4
Q
N
A
Neuromuscular junction. Here the action potential crosses the
5
Q
S
A
Synaptic cleft with the help of a neurotransmitter called
6
Q
A
A
Acetylcholine
7
Q
Y
A
Your muscles contract in an
8
Q
All
A
All or none fashion. If the action potential is above a certain threshold the ALL muscle fibres will contract but if the action potential is below a certain threshold then NONE of the fibres will contact
