Microscope)session two lactuare two)

state the relationship between milli-, micro- and nanometers.
?state the meaning of the term “tissue”.
?explain the value of histology in diagnosis.
?describe common biopsy techniques (e.g. curretage, needle, transvascular etc) giving examples of tissues which can be sampled by each method.
?explain why tissue needs to be fixed and state which fixatives are commonly used.
LECTURE OBJECTIVES
describe how tissue processing can lead to the formation of shrinkage artefacts.
? discuss the value of histological staining and state the components of tissue stained by the Periodic acid Schiff reaction (PAS) and by Haematoxylin and Eosin (H & E) staining.
? outline the advantages conferred by phase contrast, dark field, fluorescence, and confocal light microscopy
Tissue : a collection of cells specialized to perform a particular function. Tissues are made of two interacting components:
•cells
•extracellular matrix.
Histology :Is the study of the tissues of the body and how these tissues are arranged to constitute organs, by means of special staining
techniques combined with light and electron microscopy.
STATE THE MEANING OF THE TERM TISSUE
Tissue : a collection of cells specialized to perform a particular function. Tissues are made of two interacting components:
•cells
•extracellular matrix.
Histology :Is the study of the tissues of the body and how these tissues are arranged to constitute organs, by means of special staining
techniques combined with light and electron microscopy.
STATE THE MEANING OF THE TERM TISSUE