63. hyaline cartilage Flashcards
What are the main cell types of cartilage
Chondrocytes for all 3
chondroblasts for elastic and hyaline as well
fibroblasts for fibrocartilage as well
fibres and ground substance
What is cartilage
type of supporting connective tissue
Has firm extracellular matrix that allows for mechanical stress without permanent distortion
what does it mean cartilage is avascular and how do they get nutrients
They lack blood vessels
Chondrocytes receive nutrients by diffusion from capillaries in perichondrium
They also lack nerves
What is perichondrium
layer of dense connective tissue that surrounds the cartilage
essential for growth and maintenance of cartilage
Most common type of cartilage
hyaline cartilage
Where is hyaline cartilage located
Articular surfaces of joints
walls of large respiratory passes eg nose trachea, bronchi and larynx
ventral ends of ribs (attaching to sternum)
epiphyseal plates of long bones
structure of hyaline cartilage
basic cartilage structure applies
chondrocytes form homogenous matrix
lots of type11 collagen , found in particular surfaces of joints and walls of
respiratory passages.
what is the cartilage ECM made of
proteoglycans, macromolecules, glycosaminoglycans and interact with collagen and elastic fibres
What is function of chondrocyte cells
They synthezise and maintain the ECM components .
Located in matrix cavities called lacunae
