Muscular responses Flashcards
1
Q
What is one method of studying muscle function?
A
Remove a single fibre and connect it to a device that records its response to electrical stimulation
2
Q
What can isolated muscle fibres in a lab be exposed to?
A
Stimuli or various strength : fibres will be unresponsive until the threshold stimulus is reached
3
Q
What is threshold stimulus?
A
The minimum strength of stimulus required to generate a impulse through muscle fire- release Ca which activate cross bridge and contract the muscle
4
Q
What do one motor neuron impulse release?
A
sufficient acetylcholine in the neuromuscular junction to bring a muscle fibre to its threshold
