Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

Sign Up for a Free Account For information on discounts, see Plans & Pricing

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

American dog tick (D variabilis) stages

Note that larvae have six legs, whereas nymphs and adults have eight legs. (Courtesy of the Public Health Image Library, Centers for Disease Control and Prevention. Public domain.)

Related Media

Associated Disorders

  • Acute ascending paralysis