-fit closely together
-Contain an APICAL SURFACE- have one unattached surface or edge may contain cilia
-Lower surface of an epithelial cell rests on a BASEMENT MEMBRANE (basal membrane)
-Have no blood supply (avascular)...depend on diffusion to obtain O2, etc
-Easily regenerate themselves
number of layers
simple
stratified
shape
squamous-flattened
cuboidal
columnar
pseudostratified
connective
Anotações:
Connects body parts (connects, supports and binds)
Cell secrete EXTRACELLULAR MATRIX
-Fibers and “adhesion proteins”
-able to form a soft padding around the other tissues
-able to bear weight
-able to withstand stretching
bone
cartilage
hyaline
fibrocartilage
elastic
dense
tendoms
ligaments
loose
Areolar
Adipose
reticular
blood
nervous
Anotações:
Composed of specialized cells called neurons, that conduct electrical impulses across their membranes