task 2 Flashcards
1
Q
what is the meaning of spatial (quantal) summation?
A
when all the muscle fibers are activated and the muscle reaches its maximal contraction level.
2
Q
what is the “minimal stimulus”?
A
the weakest stimulus strength that just elicits contraction
3
Q
how do you find the minimal stimulus?
A
increase the stimulus strength gradually between 0-500 mV in 20 mV steps
4
Q
what is the “maximal stimulus”?
A
the weakest stimulus that just causes complete contraction
