Labs 7&9 Review Flashcards

1
Q

Define threshold

A

minimum stimulus/ voltage for a response

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2
Q

Muscle cells are all or nothing;
muscles are

A

not all or nothing

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3
Q

physiological tetanus can only be produced where?

A

in lab

[not physiologically]

only called physiological to differentiate between the disease tetanus

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4
Q

spatial summation is AKA

A

recruitment

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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+)

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6
Q

the height of AP recording is a measure of its

A

amplitude (mV)

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7
Q

of AP per unit time is a measure of its

A

frequency (hZ)

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