Embedding

Question 1

Types of Embedding Molds
1. 2 L-shaped heavy metal arranged flat on a metal surface
2. w/ several interlocking plates making several compartments
3. give 3 disposable molds
- adv of paper boats
4. give 2 reusable molds

Answer 1

1. Leuckhart’s embedding mold
2. Compound E unit
3. give 3 disposable molds
   - Peel-away, Plastic Ice Trays, Paper boats
   - cheap, diff sizes, avoids confusion
4. • Leuckhart’s embedding mold
   • Compound E unit

Question 2

orientation
1. Tubular structures
- such as (3)
- must be embedded
so that the knife cuts _____;
- placement should be as _________ as possible
2. Tissues with a epithelial surface
- such as (5)
- must be positioned so that ____

Answer 2

1. Tubular structures
   - vas deferents, veins, fallopian tubes
   - across/perpendicular to the long axis of the tube
   - vertical
2. Tissues with a epithelial surface
   - skin, intestines, gallbladder, urinary bladder and uterus
   - epithelial surface is at the top of the block so that it will be cut last

Question 3

orientation
1. Multiple soft tissue fragments and lymph nodes
- should be place ____
2. Multiple small rectangular tissues
- should be oriented with their _______
3. Small bisected cysts
- chat should be embedded with the ______

Answer 3

1. Multiple soft tissue fragments and lymph nodes
   - side by side with
   space between them
2. Multiple small rectangular tissues
   - long axis nearly
   parallel to the knife edge to minimize pressure distortion and wrinkling
3. Small bisected cysts
   - cut surface down so that the knife cuts through all layers of the cyst wall