Epithelium I Flashcards Preview

Year 1 Cell Biology > Epithelium I > Flashcards

Flashcards in Epithelium I Deck (26):
1

What are the epithelial cell domains?

1) Apical2) Lateral3) Basal (basolateral)

2

What is the epithelial sheet anchored to?

Basal lamina

3

What three characteristics are used to classify epithelium?

1) Number of cell layers2) Cell shape in superficial layer3) Presence of specialization of plasma membrane

4

What are the functions of simple squamous epithelium?

1) Blood-brain barrier2) Filtration3) Exchange

5

Where is simple cuboidal epithelium found?

1) Thyroid follicles2) Renal tubules3) Ducts of glands

6

What are the functions of cuboidal epithelium?

1) Absorption2) Secretion3) Barrier4) Conduit

7

What are the locations of nonciliated simple columnar epithelium?

1) Stomach2) Intestines

8

What is the location of ciliated simple columnar epithelium?

Uterine tubes

9

What are the functions of simple columnar epitheilum?

1) Absorption2) Secretion3) Barrier

10

What are the locations of ciliated pseudostratified columnar epithelium?

1) Trachea2) Bronchi3) Ducts of male reproductive system

11

What are the functions of ciliated pseudostratified columnar epithelium?

1) Secretion2) Absorption3) Barrier4) Transport

12

What are the locations of nonkeratinized stratified squamous epithelium?

1) Esophagus2) Distal anal canal3) Vagina

13

What is the location of keratinized stratified squamous epithelium?

Epidermis

14

What are the functions of the stratified squamous epithelium?

1) Barrier2) Protection

15

What are the locations of transitional (urothelium) epithelium?

1) Ureters2) Urinary bladder3) Urethra

16

What are the functions of transitional (urothelium) epithelium?

1) Barrier2) Protection3) Distension

17

Are primary cilia motile or nonmotile?

Nonmotile

18

What is the defect in Kartagenar syndrome?

Defective dynein arms lead to immotile cilia and flagella

19

What is the arrangement of microtubules in flagella?

9 doublets + 2 singlets arrangement

20

Glycocalyx reacts with what stain?

PAS

21

What is contained in the terminal web to mediate movement?

1) Myosin II2) Tropomyosin

22

Are sterocilia actually cilia?

No - they are elongated microvilli

23

Are sterocilia motile or nonmotile?

Nonmotile

24

What is an example of epithelium that is vascularized?

Stria vascularis

25

Where is the stria vascularis located?

Cochlear duct

26

What is the function of the stria vascularis?

Produces endolymph