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Flashcards in Tissue Deck (42):
1

Function of epithelial tissue?

- Covers surfaces
- Separates compartments

2

What are desmosomes?

Cell-cell adhering junctions

3

Function of desmosomes?

- Uniform movement
- Provides anchorage

4

What binds epithelial cells to the extracellular matrix (basal lamina)?

Hemidesmosomes

5

Function of epithelial cells in the gut?

- Absorption through microvilli

6

Function of cilia?

Transportation of extracellular components (mucus)

7

Describe simple squamous epithelium

- Single cell thick
- Flat cells

8

What are simple squamous epithelial cells good for?

Diffusion

9

Simple cuboidal epithelium?

- Single cell thick
- Cuboid shape

10

Function of simple cuboidal epithelium?

- Secretions
- Absorption

11

What structure will you find simple cuboidal epithelium?

- Nephrons

12

Where are simple columnar epithelium found?

- Lining of digestive tract

13

What do simple columnar epithelium usually have coming out of the axial layer?

Microvilli

14

Where in the body do you find stratified squamous epithelium?

Epidermis

15

Where in the body do you find stratified cuboidal?

Sweat gland ducts

16

Where in the body do you find stratified columnar?

Pharynx

17

What is the function of the stratified columnar cells in the pharynx?

- Protection
- Secretion

18

Name of the epithelial tissue in the liver?

Hepatocytes

19

Function of the hepatocytes?

- Secretion
- Absorption
- Lining of blood vessels and bile ducts

20

Function of the epithelium found in the kidney?

- Filtration
- Partial absorption of the filtrate

21

Name of the specialised epithelium found in the bladder

Transitional stratified epithelium

22

What can occur with problems from damage to the covering epithelium

- Under/over secretion
- Lack of cilia
- Under/over proliferation

23

What are endocrine glands?

Glands that secrete into the blood

24

What are exocrine glands?

Glands that secrete onto their surface

25

Two types of simple glands?

- Tubular
- Acinar

26

Example of a compound gland?

Tubuloacinar gland, salivary glands

27

How do myoepithelial cells ensure secretion of a molecule?

They contract around the space where the secrete is to push it out

28

Example of a disease caused by over secretion?

- Pituitary gigantism
- Hyperthyrodism

29

Example of a disease caused by under secretion

- Pituitary dwarfism
- Hypothyroidism

30

Two types of fibrous connective tissue?

- Collagen
- Elastic fibres

31

Structural characteristics of collagen?

- Flexible
- Inelastic
- Very strong

32

Structural characteristics of elastin?

- Elastic

33

What is elastin made of ?

- Microfibrils
- An amorphous component

34

What is ground substance?

- Gel like substance

35

What is ground substance made of?

- Proteoglycans
- Hyaluronic acid
- Glycoproteins

36

What is a proteoglycan?

Protein core surrounded by GAGs

37

What is a glycoprotein?

Sugar covalently bonded to a protein

38

2 names given to types of loose connective tissue?

Fixed
Transient

39

Examples of fixed connective tissue?

- Fibroblasts
- Macrophages
- Mast cells
- Adipocytes

40

Example of transient connective tissue?

Lymphocytes

41

What disease can abnormal function of bone result in?

- Osteoporosis

42

What disease can abnormal function of blood result in?

Leukaemia