Which Type of Cell Junction Attach an Epithelial Cell to Extracellular

Question

Which type of cell junction attach an epithelial cell to extracellular structures.
A) Hemidesmosomes
B) Spot desmosomes
C) Gap junction
D) Tight junction
E) All of these choices are correct

Accepted Answer

Hemidesmosomes are the type of cell junctions that attach epithelial cells to extracellular structures, such as the basement membrane. Spot desmosomes provide adhesion between adjacent epithelial cells, gap junctions allow for communication between cells, and tight junctions create a barrier between cells to prevent leakage of molecules. Therefore, choices B, C, D, and E are not the best choices for this question.