Epithelial Tissue Flashcards Preview

Histology PHM > Epithelial Tissue > Flashcards

Flashcards in Epithelial Tissue Deck (12):
1

Which 3 places is stereocilia found?

epididymis, inner ear, and ductus deferens

2

State the difference between endothelium and mesothelium

Endothelium lines blood vessels; mesothelium lines the body cavities (pleura, pericardium, and peritoneum)

3

What is the main difference between serosa and mucosa?

Serosa attaches to the basement membrane so is underneath the epithelial cells; mucosa lies on the topmost layer

4

State 3 differences between microvilli and stereocilia

1. microvilli has a villin cap but stereocilia doesn't
2. stereocilia are much longer than microvilli
3. microvilli connects to the plasma membrane via myosin 1; stereocilia connects via ezrin
4. microvilli found in most epithelial cells; stereocilia found in few locations

5

How do stereocilia develop?

1. LATERAL addition of actin filaments
2. elongation of actin filaments

6

State 6 locations of motile cilia.

1. sperm cells as flagella
2. oviduct
3. trachea
4. bronchial tree
5. olfactory
6. brain ependyma (forms lining of brain and spinal cord canal)

7

What are the 2 main functions of motile cilia?

1. transport cell secretions
2. sperm propulsion

8

Which type of cilia on average is the shortest?

primary/monocilia

9

True or false: Primary cilia is motile

false

primary cilia is immotile

10

How are the core microtubules arranged in motile versus primary cilia?

Motile cilia --> 9 + 2 arrangement
Primary cilia --> 9 + 0 arrangement

11

State the function of a basal body.

anchor cilia to apical cell cytoplasm

12

Another name for basal body is ...

microtubule-organizing center