muscle initiation Flashcards
1
Q
step 1 ?
A
enable conscious control of muscles, brain sends electrical nervous messages to muscle
2
Q
step 2 ?
A
messages or signals travel down spinal cord to motor nerves
3
Q
step 3 ?
A
leaves the spinal cord, motor nerve branches off into smaller motor neurons then divide to attach to muscles
4
Q
step 4?
A
nerve meets the muscle fibres at a gap, called neuromuscular junction,
5
Q
step 5
A
neurotransmitter, chemical called acetylcholine helps nerve impulse make the jump