HISTO stains Flashcards Preview

Block 1 WK 6 > HISTO stains > Flashcards

Flashcards in HISTO stains Deck (19)
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1
Q

If a tissue is acidophilic, what charge is the dye and what does it bind to and what color is it?

A

Na+, binds to cationic groups NH3+ amino groups, Red

2
Q

What color will the cytoplasm and connective tissue fibers stain

A

red, acidophilic

3
Q

If a tissue is basophilic, what charge is the dye and what does it bind to and what color is it?

A

Cl-, binds to anionic groups (HPO4), blue

4
Q

What type of dye is typically used for acids?

A

eosin

5
Q

What type of dye is typically used for bases?

A

hematoxylin

6
Q

When using Hematoxylin and Eosin,What color will the Nucleus and rER stain?

A

blue

7
Q

When using Hematoxylin and Eosin,What color will the cytoplasm stain?

A

varying shades of red

8
Q

When using Hematoxylin and Eosin,What color will collagen stain?

A

very pale pink

9
Q

When using Hematoxylin and Eosin,what color will cartilage and calcium stain?

A

dark blue

10
Q

When using Hematoxylin and Eosin,What color will red blood cells stain?

A

bright red

11
Q

When using Hematoxylin and Eosin,is the most common stains used in histology?

A

eosin and hematoxylin

12
Q

What are trichrome stains good for?

A

collagen fibers and muscle

13
Q

When using trichrome stains, what color will collagen appear? What about muscle?

A

light blue

Red

14
Q

What do you use Mallory’s stain for?

A

differentiate pituitary cell types, but sometimes used for collagen

15
Q

When using mallory’s stain, what color will collagen appear? What about elastin fibers?

A

blue

Pink,yellow or unstained

16
Q
What are these stains:
Verhoeff's 
Orcein 
Weigert's
Aldehyde-fuchsin
A

elastic stains

17
Q

Silver stains show what kind of fibers?

A

reticular (black)

18
Q

What do periodic acid-Schiff stain?

A

glycogen and carbohydrate rich molecules (magenta) i.e basement membrane, glycocalyx etc

19
Q

Wright and Giemsa Stains are used in what?

A

classic blood smear