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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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


Myotome (muscle weakness)

Nerve RootMuscle weakness
C1 None
C2 Longus colli, SCM, Rectus capitis
C3 Traps, Splenius capitis
C4 Traps, Levator scapulae
C5 Supraspinatus, Infraspinatus, Deltoid, Biceps
C6 Biceps, Supinator, Wrist extensors
C7 Triceps, Wrist flexors (rarely, wrist extensors)
C8 Ulnar deviators, Thumb extensors, Thumb adductors (rarely, triceps)
T1-T2 Disk lesions at upper 2 thoracic levels do not appear to give rise to root weakness.
T3-T12 Articular and dural signs and root pn are common. Root signs (cutaneous analgesia) are rare and have such indefinite area that they have little localizing value. Weakness is not detectable.
L1 None
L2 Psoas, Hip adductors
L3 Psoas, Quads, thigh atrophy
L4 Tibialis anterior, Extensor hallucis
L5 Extensor hallucis, Peroneals, Gluteus medius, Dorsiflexors, Hamstrings and calf atrophy
S1 Calf and hamstrings, wasting of gluteals, peroneals, plantar flexors
S2 Same as S1 except peroneals
S3 None
S4 Bladder, rectum
Created by: glopez111



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:
restart all cards