Labs 7&9 Review Flashcards
1
Q
Define threshold
A
minimum stimulus/ voltage for a response
2
Q
Muscle cells are all or nothing;
muscles are
A
not all or nothing
3
Q
physiological tetanus can only be produced where?
A
in lab
[not physiologically]
only called physiological to differentiate between the disease tetanus
4
Q
spatial summation is AKA
A
recruitment
5
Q
during an AP, the membrane polarity momentarily becomes positive.
this event is called: 1
and it is caused by diffusion of ____2_____ into axon
A
1- depolarization
2- sodium (Na+)
6
Q
the height of AP recording is a measure of its
A
amplitude (mV)
7
Q
of AP per unit time is a measure of its
A
frequency (hZ)
