Types of Tissue

Question 1

Purpose of epithelial tissue

Answer 1

Epithelial tissue consist of one or more layers or cells that line the body cavity

Its purpose is for protection, absorption, secretion of substances

Question 2

Purpose of supporting tissues

Give examples

Answer 2

1) For structure and protection

2) Examples include cartilage, bones, tendons and blood

Question 3

Give examples of muscle tissue

Answer 3

Smooth
Skeletal
Heart

Question 4

Give examples of nerve tissue

Answer 4

Brain
Peripheral
Visceral

Question 5

Examples of germ cells

Answer 5

Ova and Sperm

Question 6

How does haematoxylin&Eosin stain work?

Give examples of structures that are normally stained blue

What does eosin stain pink?

What does eosin stain orange/red?

What substances do not stain with H&E?

Answer 6

Haemoxtylin=stains acidic substances blue

Eosin=stains alkaline substances pink

Cell nuclei and RNA

Cytoplasm and colloidal proteins (plasma) and extracellular fibres such as collagen and elastic fibres

Keratin

Water extra-cellular jelly and fat

Question 7

What substances does Alcian Blue stain blue?

Answer 7

GAG
Mucous goblet cells
Mast cell granules
Cartilahe matrix

Question 8

What does iron haemotoxlyin stain black?

Answer 8

Nuclei and elastic fibres

Question 9

What does Periodic Acid Shiff (PAS) stain magenta?

Answer 9

It essentially stains HEXOSE sugars

Hexose sugars are contained in goblet cell mucins, cartilage matrix, glycogen, basement membrane and glycocalyx.

Question 10

What does toluidine blue stain dark blue?

Pale blue?

Bright purple?

Answer 10

1) Nuclei, ribosomes, cytoplasm
2) Cartilage matrix, mast cell granules
3) GAG

Question 11

What type of cells tend to be dormant?

Answer 11

Small cells whereas larger cells tend to be more active.