Connective tissue Flashcards
State the 3 types of fibers.
- Reticular
- Collagen
- Elastic
Which type of fiber is the most abundant?
Collagen
Why can collagen be called a glycoprotein?
Because the hydroxylsyl amino groups have sugars attached to them.
Where is loose areolar connective tissue found?
Underneath epithelium
Which kind of fibers are found in loose areolar connective tissue?
Collagen
Elastic
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
Name the 3 types of cartilage.
elastic
hyaline
fibrocartilage
Which cartilage does not undergo calcification?
Elastic
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
How are the types of collagen classified?
By the combination of alpha chains.
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
Where is type 1 collagen found?
skin, bone, tendons, ligaments, fascia, sclera, dentine (beneath the enamel of teeth)
Which collagen molecule is involved in Osteogensis Imperfecta?
Type 1 collagen
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
Which kind of cells are found in both elastic and hyaline cartilage?
chondroblasts and chondrocytes
