Epithelial Tissue Flashcards Preview

Histology > Epithelial Tissue > Flashcards

Flashcards in Epithelial Tissue Deck (22)
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0
Q

What is the basement membrane made up of?

A

Lamina rara, lamina densa and reticular lamina

1
Q

What is epithelial tissue derived from?

A

Endoderm, mesoderm and ectoderm

2
Q

3 locations of simple cuboidal epithelium

A

Kidney tubules, bronchioles, secretory cells of glands

3
Q

Why do brush borders appear blue?

A

Covered in mucus and mucus stains blue

4
Q

3 locations of simple columnar epithelium

A

GI tract, uterus lining, uterine tubes

5
Q

Function of stratified squamous epithelium

A

Protective barrier against wear and tear

6
Q

3 locations f stratified squamous epithelium

A

Skin, oral cavity, oesophagus

7
Q

Basal layer cells in stratified cuboidal are

A

Stem cells and myoepithelial cells

8
Q

What kind of epithelium is found in the urinary bladder?

A

Transitional epithelium

9
Q

2 functions of transitional epithelium

A

Able to stretch (distend)

Impermeable barrier

10
Q

Mucosa consists of

A

Epithelium and it’s basement membrane
Lamina propria
Muscularis mucosa

11
Q

When swords lines cavities it is called the

A

Parietal layer

12
Q

When serosa covers organs it is called the

A

Visceral layer

13
Q

What does serosa secrete and what is it’s function?

A

Serous fluid
Minimises friction
Contains defence cells and lysozyme

14
Q

Microvilli and cilia contain which types of filament?

A

Micro villi- actin filament

Cilia- micro tubules

15
Q

Tight junctions are also called

A

Zona occludens

16
Q

What is the difference between zona adherens and desmosomes?

A

Zona adherens= continuous belt

Desmosomes= scattered adhesion plaques

17
Q

Give an example of a compound exocrine gland

A

Salivary

18
Q

Give an example of a multicellular simple exocrine gland

A

Sweat and colon

19
Q

What does an apocrine gland secrete? Eg?

A

Apical parts of cell are released

Eg mammary gland

20
Q

What does a holocrine gland secrete? Eg?

A

Discharge of the whole apoptosis glandular cells

Eg sebaceous glands

21
Q

What do merocrine glands secrete?

Eg

A

Exocytosis of secretion from apical surface

Eg salivary gland