Lernmaterialien für Histology an der Medical Academy in Warszawa

sheets of contiguous cells (epithelia) that cover the body on its external surface and line the body on its internal surface and (2) glands, which originate from invaginated epithelial cells.

1. oviducts
2. ductuli efferentes of testis
3. uterus
4. small bronchi
5. much of digestive tract, gallbladder
6. large ducts of some glands

Cardiac muscle cells

water of hydration

refers to treatment of the tissue with chemical
agents that not only retard the alterations of the tissue
subsequent to death (or after removal from the body)
but also maintain its normal architecture.

paraffin. The tissue is placed in a suitable container of melted paraffin until it is completely infiltrated by that waxy substance.
Once the tissue is infiltrated, it is placed into a small
receptacle, covered with melted paraffin, and allowed
to harden, forming a paraffin block containing the tissue.

ground substance and fibers

5 to 10 µm in thickness

The light microscope is an instrument for visualizing fine detail of an object. It does this by creating a magnified image through the use of a series of glass lenses, which first focus a beam of light onto or through an object, and convex objective lenses to enlarge the image formed.

cytoplasm, extending from the plasma membrane to the nuclear envelope, and the karyoplasm, the material forming the contents of the nucleus.

3

Steps required in preparing tissues for light micros-
copy include (1) fixation, (2) dehydration and clearing,
(3) embedding, (4) sectioning, and (5) mounting and
staining the sections.