Does hyaline cartilage have a perichondrium? Where might it be lacking?
Yes. Over surfaces that are not attached to bone.
What is the function of an intra-articular disc?
They assist in guiding the articulating surfaces.
Give an example of where each can be found.
Hyaline- entire fetal skeleton (long bones), comprises the tracheal rings and skeleton of the larynx in the postnatal condition; elastic comprises the epiglottis and pinna of the ear; fibrocartilage comprises the pubic symphysis and intervertebral discs.
When are these two layers most evident?
During cartilage formation.
How is a proteoglycan monomer formed?
Chondroitin sulfate and keratan sulfate (prominent GACs of cartilage) join to a core protein to form a proteoglycan monomer.
What is a cell nest (isogenous group)?
A group of mature chondrocytes that arose from the cell division of a single chondrocyte – all occupying the single lacuna of that original cell.
How is articular cartilage nourished?
By diffusion from the blood vessels of the marrow space of the underlying bone and by diffusion from the surrounding CT capsule via synovial fluid.
What are three types of synovial membranes and how do they differ?
Areolar (overlies loose CT); fibrous (overlies the dense regular CT capsule, tendons and ligaments); and adipose (surrounded by adipose tissue of the superficial fascia ie. bursae).
