Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

A and P Muscle Lab

Lab Quiz

A larger number of neurons sending signals at the same time is called... Spatial summation
The result of a spatial summation is... A quick and powerful contraction of several motor units
A few neurons sending a high rate of signals to the same group of muscle cells is called... Temporal summation
Temporal summations... are weaker then spatial but last longer. It involves less electrical activity then spatial.
As the frequency of a stimulus increases (more signals from a neuron)... A particular set of muscle fibers well become tired and eventually become tetanus (locked)
Motor Unit a single α-motor neuron and all of the corresponding muscle fibers it innervates;
Threshold Stimulus The weakest stimulus capable of producing an action potential in an excitable cell.
Temporal (or wave) summation Temporal Summation occurs when the time constant is sufficiently long and the frequency of rises in potential are high enough that a rise in potential begins before a previous one ends.
Spatial Summation Spatial summation is the algebraic summation of potentials from different areas of input, usually on the dendrites.
Tetanus a sustained muscular contraction resulting from a rapid series of nerve impulses
Created by: gotmilk954