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6 Cards in this Set

  • Front
  • Back
Microvilli
extensions of the plasma membrane (increase surface area) used for absorption; brush border; actin
cilia
hairlike processes; axoneme; dynein arms
flagella
like a long solitary cilium; sperm
intercllular junctions
(tight junctions)
-completely encircles an epithelial cell near its apical surface.
-seals off intercellular space
-prevents bacterial spread
-nutrients must pass through the cells, not between them
intercullualer junctions
(desmonosomes)
-patch that holds cell together
-more like a snap
-not continuous = can prevent substances from passing between cells
-epidermis, cardiac muscle, cervix of uterus
interceullular junctions
(gap junctions)
Connexon: ring-like, six transmembrane protiens (orange like)
-allow small molecules to pass through the channel
-cardiac muscle