Save
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

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.
Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
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

pain neurophysiology

therapeutic mod pain neuro

QuestionAnswer
Nerve Types Mylelinated, unmylelinated
Mylelinated Schwann cells form the myelin sheath around the axon of peripheral nerves Olgiodendrocytes form myelin sheath around the axons of the CNS NOR propagates the AP along the axon
Nodes of Ranvier increase speed of ocnduction only on mylelinated nerve cells propagate the AP along the axon
Unmylelinated No schawnn cells, olgiodendrocytes or NOR slower conduction velocities
Nerve classifications Efferent, Afferent
Efferent pathways Motor-A alpha EAT MOTOR NEURON DOES NOT INNERVATE THE SAME DUE TO THE FUNCTION(fine motor control has less then like back where the power is headed)
Motor unit alpha motor neuron and all the muscle fibers it innervates (efferent pathways)
Afferent Sensory-a beta, a delta,
What type of nerve fiber is the easiest to innervate large diameter fibers-have faster nerve conduction as well, A delta
A beta located in the skin sensitive to touch and vibration
A delta located in the skin sensitive to touch and vibration
C Muscle and skin sensetive to pain touch, pressure vibration and temperature
Resting membrane potential the voltage difference between the inside and outside of a cell (-60 to 90 mv) + charge on the outside of the cm due to increase Na - charge on the inside of the cm due to increased K+ Cl is in high concentration on the outside of CM
What maintains cell gradient and how? NA/K pump maintains cell gradient by pumping 3 Na out and 2K in which places a positive charge on the outside of the cell membrane
Resting Membrane Potential Depolarization, repolarization, hyperpolarization
Depolarization inside the cell becomes less negative
Repolarization cell membrane becoming more negative, closer to the RMP
Hyperpolarization cell membrain more negative than resting state
Action potential CM becomes permeable to a + charge causing a DP of the membrane,inside of the cell + to outside /\ in Na gradient then increases K gradient, a charge seperation across the membrane causes an AP to a + point K restores itself to a more - state causing
Absolute refractory period the basis of the absolute refractory period Na channels actually have 3 voltage gated configurations
Relative Refractory period Basis of the relative refractory period: The K+ over shoot K+ channels close near the RP Since the K+ changnels are slower, the membrane potential overshoots the RP about -80 mv near the K+
Na channels 3 volaged gated configurations Closed(at rest) Open(during AP) Inactive or refractor(just after an AP)
Closed configuration for NA channels ions cannot pass ready to open
Open configuration for Na channels Ions can pass through during an action potential
Inactive or refractory configuration of Na Channels ions cannot pass will not open
Created by: jwebst1
Popular Sports Medicine sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards