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

UND 363 Holmes Silve

UND 363 Holmes Silver

purpose for holmes Silver nitrate demo nerve fibers and neurofibrils
holmes silver is a mod of the bodian tech. what is the difference? bodian was inconsistent, holmes found that it wasn't alkaline enough for optimal impregnation
fix formalin
equip chem cleaned glass
tech 10-15 micron
qc cerbral cortex (spinal cord not good because axons appear in cross section)
principle (changes from bodian tech.) alkaline impregnation soln' (boric acid, soduim borate, silver nitrate, pyridine) and a reducing solution (hydroquinone and sodium sulfate)
what makes the impregnation solution alkaline and what is its purpose pyridine, changes the electrostatic condition of the tissue.
procedure impregnate with alkaline soln, reducer (hydroquinone/soduim sulfite), tone with gold chloride, oxalic acid (reduces gold chloride and gives purple tinge), soduim sulfate to remove excess silver)
results axons, nerve fibers, neurofibrils - black
Created by: mustangvxd