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.

Remove Ads
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

Biomechanics back

biomechanics of the back 10/2/12

In flection, the nucleus pulposus moves ______________, facets __________ posteriorly, open
In extension, the nucleus pulposus moves ______________, facets __________ anteriorily, close
In side bending, the nucleus pulposus moves ______________, facets __________ convex, one open, one close
In rotation, the nucleus pulposus moves ______________, facets __________ not affected
What are uncinate processes? ensure that vertebrae "stay on track"
What are uncovertebral joints? Allow movement to occur smoothly
What plane does thoracic movement occur in? coronal
What limits rotation of the thoracics? ribcage
What plane does the lumbar vertebrae move in? sagittal
What limits movement of the lumbar spine? limited in extension
Facet joints and capsules are innervated by.... posterior rami from 2 adjacent levels
What is excessive kyposis a result of? osteoporosis or compression fractures
What plane is excessive kyposis in? sagittal plane into flexion
What are some causes of excessive lordosis? pregnancy, fat, weak abs
What plane is excessive lordosis in? sagittal plane, into extension
WHat is loss of lordosis a result of? muscle spasm
What plane is scoliosis in? coronal
Where are the kyphosises? thoracic, sacral
Where are the lordosises? cervical, lumbar
Which ligaments tether ribs to the nearby vertebrae? costotransverse ligament
What ligament connects the transverse processes of L4 and L5 to the ilium? Iliolumbar ligaments
What joint is specialized for rotation? posterior atlanto-axial membrane (joint)
What is the atlano-occipital joint specialized for? flexion and extension
What does the nuchal ligament do? fans out from cervical spinous processes, large surface for cervical muscle attachment
Created by: 583931909