Epithelium Tissue Lecture notes ANATOMY Clinically Oriented Anatomy, ISBN: 9780781775250

EPITHELIUM TISSUE
DEPARTMENT OF ANATOMY

, Four Basic Types of Tissue

• Epithelia
• Connective tissue
• Muscle tissue
• Nervous tissue




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, Cell-to-cell Adhesions
• Cell adhesion is the binding of a cell to a surface, such as
an extracellular matrix or another cell
• Cellular adhesion is essential in maintaining multi-cellular
structure.

• Adhesion
molecules
– Glycoproteins
bind cells
together
– Intercellular
proteoglycans
glue cells together
– Calcium ions play
an important
role
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, Cell-to-cell Adhesion types

• Cell junctions
– Zonula
occludens
– Zonula
adherens
– Fascia
adherens
– Macula
adherens
(Desmosome)
– Gap junction
(Nexus)
– Hemidesmoso
me
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