Amphibian blood


Workbook tasks

Slide 21: Amphibian blood H/E
This specimen serves as an example of an animal cell and is used to orientate you regarding the size, shape, colour and shading of a cell stained with haematoxilyn and eosin.
  1. View the available slides at various magnifications.
  2. Depending on the magnification, you will see more or less detail. This influences what can be visualized and how the slide appears.
  3. Identify and define the following:
    • The red blood cell
    • The shape of the cell and nucleus.
    • The location of the nucleus in the cell i.e. central or eccentric.
    • The ratio of the size of the nucleus to the size of the cell.
    • The colour of the cytoplasm.
    • The colour of the nucleus.

  4. Drawing:
    • Make a detailed annotated drawing of a few red blood cells.
    • Draw the shape and size of the cell and nucleus in the correct ratio to one another.
    • Indicate the colour of the cell and nucleus.
Complete the table
  Cytoplasm Nucleus Cell membrane

  1. What is understood by the terms acidophilic and basophilic?
  2. Why canít the cell membrane be seen?
  3. Why does this red blood cell have a nucleus?
  4. The average diameter of the amphibian red blood cell is 0.01 mm. How many red blood cells would be equal to the average diameter of a human red blood cell?
  5. Which is the largest human cell? Which is the longest human cell?


Overview of the slide

High magnification of a section of the amphibian blood smear

© februarie 2008 marius loots