Cartilage & bone Flashcards
what are the 3 main components to cartilage
ground substance, fibres and cells.
what 2 cell types are found in cartilage
chondroblasts (synthesis&secrete) and chondrocytes (maintain)
what fibres are found in cartilage
elastin and collagen fibres
what is the ground substance made up of in cartilage
chrondroitin sulphates - functions to provide resistance to compression
name the 3 types of cartilage
hyaline, elastic and fibrocartilage
where is elastic cartilage found
outer ear/ epiglottis
what dominates in the fibrocartilage
irregular dense collagen fibres
where is fibrocartilage found
pads lie between spinal vertebrae
what is the most common type of cartilage found
hyaline
what type of cartilage had abundant ground substance
hyaline
what type of cartilage has abundant elastin fibres
elastic cartilage
what two confirmation is bone tissue arranged into
compact (cortical) bone and song (trabecular) bone
what are the 4 cells found in bone tissue
osteogenic/osteoprogenitor cell
Osteoblast
Osteocyte
Osteoclast
what is the function of the osteoblast
synthesis and secrete bone tissue (osteoid)
gives rise to osteocyte
function of osteocytes
maintain mineralised bone tissue
osteoclast function
phagocytic cells.
- resorbs bone
what is the central canal in bone
contains network of blood vessels, nerves, lymphatic vessel.
run longitudinally through entire length of bone
what is lamellae
layers of bone tissue (both compact and spongy bone arranged in layers)
what is a disorder or bone and cartilage? (related to dentistry)
periodontitis
what is periodontitis
inflammatory disease
destruction of alveolar bone and subsequent tooth loss
Osteomalacia - rickets in children
What physiological process drives osteoclastogenesis in conditions such as periodontitis and rheumatoid arthritis?
inflammation
associated dental abnormalities with disorders of bone and cartilage
enamel hyperplasia and delayed tooth eruption
