Histology Flashcards
1
Q
What are the main components of the extracellular matrix in cartilage?
A
- Fibbers: type II collagen in hyaline cartilage and elastic fibbers in elastic cartilage.
- Amorphous ground substance: Proteoglycans such as chondroitin SO4 (50% sugar and 50% protein) and glycoproteins (10% sugars and 90% protein)
2
Q
Name 1 and 2?
A
- Hyaline cartilage
- Elastic cartilage
3
Q
What are the major cell types involved in the formation of bone?
A
- Osteocyte: major cell type of mature bone derived from osteoblasts
- Osteoblasts: synthesize the organic components of the extracellular matrix:
- Collagen type 1 fibbers
- Amorphous groupnd substance: proteoglycans and glycoprotein
- Minerals: crystals of hydroxyapatite Ca10(PO4)(OH)2
- Osteoclasts are multinucleated giant cells involved in the resorption and remodeling of bone tissue
4
Q
A
A. Periosteum
5
Q
A
B. Z line
6
Q
A
A. Adipocyte
7
Q
A
D. Perimyrium
8
Q
A
B
9
Q
A
B. Actin alone in I band
10
Q
A
A. Endomysium
11
Q
A
A. Endomysium
12
Q
A
B
13
Q
A
D. Haversian Canal
14
Q
A
A. Fibrous Perochondrium
15
Q
A
C. Epiphyseal plate
16
Q
A
D. Chondrogenic perichondrium
17
Q
A
B. Osteoblasts
18
Q
A
E. NOT elastic cartilage
19
Q
A
E. Perichondrium
20
Q
A
D. Mixed spicules
21
Q
A
B. Fibrocartilage
22
Q
A
B. Epiphysis
23
Q
A
A. fibrocartilage
24
Q
A
A. Plate of woven bone
