1-10 Basic concepts

INTERPRETING STRUCTURES PRESENT IN HISTOLOGICAL SECTIONS
The study of histological sections is always challenging. As the sections are very thin slices of fragments of tissues or organs, we observe in (almost) two dimensions structures that originally have three dimensions.
This means that they need to be analyzed taking into account that:
1- each section is only a small sample of an object that is many times larger.
2- the section does not reveal what cells of the original fragment were present before and behind this particular section.
3- the section does not always reveal the way and angle at which an object was sectioned.

For these reasons, sections must always be examined very carefully under a microscope to try to correctly interpret the structures and know the real organization of these structures.

Observe carefully the image at your right. Is it allright? Check the tip and the base of the fork.

Desktops and notebooks: Place the cursor over the figure to access another image.
Touchscreens: Click on the figure to access another image. Click outside of the figure to return to the first image.

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