Besides liver, which tissue is cited as an excellent control for glycogen PAS reaction?

Prepare for the Histotechnologist Certification Exam with our comprehensive study material. Use flashcards, detailed explanations, and intuitive multiple-choice questions. Boost your test readiness and achieve certification success!

Multiple Choice

Besides liver, which tissue is cited as an excellent control for glycogen PAS reaction?

Explanation:
In PAS staining for glycogen, the tissue chosen as a control should show strong, glycogen-based PAS positivity that is removed by diastase digestion. The cervical epithelium is excellent for this because it contains abundant glycogen in the superficial layers of the non-keratinizing stratified squamous epithelium. This makes it stain vividly with PAS, and after diastase digestion the glycogen is digested away, causing the stain to disappear. This reliable, diastase-sensitive signal provides a dependable internal control on routine tissue sections. Other tissues listed don’t provide the same consistency or accessibility for glycogen demonstration in everyday practice.

In PAS staining for glycogen, the tissue chosen as a control should show strong, glycogen-based PAS positivity that is removed by diastase digestion. The cervical epithelium is excellent for this because it contains abundant glycogen in the superficial layers of the non-keratinizing stratified squamous epithelium. This makes it stain vividly with PAS, and after diastase digestion the glycogen is digested away, causing the stain to disappear. This reliable, diastase-sensitive signal provides a dependable internal control on routine tissue sections.

Other tissues listed don’t provide the same consistency or accessibility for glycogen demonstration in everyday practice.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy