Tissue Flashcards
what are the 3 types of connections between cells
- tight junctions
- gap junctions
- anchoring junctions
tight junction
separates the cells into apical and basal compartments
Anchoring junctions
help to stabilize epithelial tissues
3 types of anchoring junctions
- desmosomes
- hemidesmosomes
- adherens
desmosomes
occur in patches on the membranes of cells
-these patches are structural proteins on the inner surface of the cells membranes
what are the adhesion molecules that are embedded withing the patches of desmosomes and what molecules do they connect to
cadherin attaches to other cadherins
Hemidesmosomes
link cells to the extracellular matrix
-their adhesion molecule is called integrins
Adheren junctions
use either cadherins or integrins
-these junctions are characterized by the presence of actin
gap junction
forms a intercellular passageway between the membranes of adjacent cells to allow for movement of particles between he cytoplasm and other cells
endothelium
lines the vessels of the lymphatic and cardiovascular system and made from simple squamous
mesothelium
simple squamous forms the surface layer of serous membranes, forms the lining on the pleural cavity, pericardium, and the mediastinum
what are the 5 types of simple ducts
- (two alceolar)
- (3 tubular
- simple alveolar
- simple branched alveolar
- simple tubular
- simple coiled tubular
- simple branched tubular
what are the 3 compound ducts
- compound alveolar
- compound tubuloaveolar
- compound tubular
simple alveolar ducts
not found in adults
a stage in the development of simple branched galnds
simple branched alveolar
sebaceous glands
simple tubular
intestinal glands