Connective tissue Flashcards Preview

Histology PHM > Connective tissue > Flashcards

Flashcards in Connective tissue Deck (20):
1

State the 3 types of fibers.

1. Reticular
2. Collagen
3. Elastic

2

Which type of fiber is the most abundant?

Collagen

3

Why can collagen be called a glycoprotein?

Because the hydroxylsyl amino groups have sugars attached to them.

4

Where is loose areolar connective tissue found?

Underneath epithelium

5

Which kind of fibers are found in loose areolar connective tissue?

Collagen
Elastic

6

What is the difference between dense regular and dense irregular connective tissue?

Dense regular fibers arranged regularly
Dense regular found in areas of mechanical stress (tendons and ligaments)

Dense irregular fibers haphazardly arranged
Not found in areas of mechanicl stress

7

Name the 3 types of cartilage.

elastic
hyaline
fibrocartilage

8

Which cartilage does not undergo calcification?

Elastic

9

How can you differentiate reticular connective tissue from areolar connective tissue?

Reticular connective tissue does not stain well with H&E so stained with silver salts and has black appearance; areolar stains with H&E so has a pink color

10

How are the types of collagen classified?

By the combination of alpha chains.

11

What's the difference in the functions of type 1 and type 2 collagen?

Type 1: provides resistance to force, stretch, and tension
Type 2: provides resistance to pressure

12

Where is type 1 collagen found?

skin, bone, tendons, ligaments, fascia, sclera, dentine (beneath the enamel of teeth)

13

Which collagen molecule is involved in Osteogensis Imperfecta?

Type 1 collagen

14

What is the cause of Osteogenesis imperfecta?

mutation in genes coding for collagen alpha helices that causes blue sclera, hearing loss, and repeated fractures after minor trauma

15

Which kind of cells are found in both elastic and hyaline cartilage?

chondroblasts and chondrocytes

16

What kind of cells are found in fibrocartilage?

fibroblasts and chondrocytes

17

Which cartilage lacks a perichondreum?

fibrocartilage

18

Which cartilage has collagen type 2?

All of them.

19

True or false: Elastic cartilage has collagen type 1 and 2.

False. Fibrocartilage has collagen type 1 and 2

20

How can you differentiate between elastic and hyaline cartilage on a slide?

Hyaline cartilage fibers are not visible so matrix appears smooth. Elastic cartilage, fibers are clearly seen. If the slide is not zoomed in, then both cartilages look similar.