Lecture 1 epithelial

Question 1

what are the 5 types of cell junctions?

Answer 1

tight junction

adherens junction

desmosomes

hemidesmosomes

gap junctions

Question 2

What is the function of tight junction?

Answer 2

fuse adjacent plasma proteins together, fuse very tightly to prevent the leakage of contents from the cells themselves

Question 3

What is the function of adherent junction?

Answer 3

provide structural support in areas that undergo mechanical stress, adheres several cells together so they function as a unit

Question 4

What is the function of desmosomes junction?

Answer 4

provides strong adhesion, links intracellularly to intermediate filaments of the cytoskeletons of those adjacent cells

Question 5

What is the function of hemidesmosomes?

Answer 5

link epithelial cells to basement membrane, connects skin cells to connective tissues which underline those skin cells

Question 6

What is the function of gap junction?

Answer 6

connects the cytoplasm of 2 cells allows for communication via ions that can carry electric current