P2. apical structures of epithelial cells.

Question 1

the three (3) apical structures of epithelial cells:

Answer 1

1. microvilli
2. stereocilia
3. cilia

Question 2

small membrane projections w/ cores of actin filaments that function to increase epithelial cells’ APICAL SURFACE AREA for ABSORPTION

Answer 2

microvilli

Question 3

• long microvilli w/ specialized mechanosensory function
• increase the cell’s surface area facilitating absorption
• longer & less motile than microvilli & show branching distally

Answer 3

stereocilia

Question 4

larger projecting structures w/ a well-organized core of microtubules in which restricted.

Answer 4

cilia

Question 5

cilia

____ of microtubules causes ciliary movement that propel material along an epithelial surface.

Answer 5

dynein-based sliding