Cartilage

Question 1

what makes up the perichondrium

Answer 1

outer layer - fibrous - fibroblasts, type I collagen and blood vessels
Inner cellular - chondrogenic - source of chondroblasts

Question 2

where are chondrocytes located?

Answer 2

lacunae of cartilage surrounded by matrix

Question 3

what is an isogenous group

Answer 3

mitotic division of chrondrocytes - group of 4-8 chondrocytes = isogenous group = cell next

Question 4

capsular matrix - what is it? where is it? what are its components?

Answer 4

adjacent to chondrocyte - poor in collagen, rich in GAGs, stains basophilic also metachromatic - stain with PAS

Question 5

where is the territorial matrix found?

Answer 5

around isogenous gorups

Question 6

where is the inter territorial matrix found?

Answer 6

matrix between isogenous groups

Question 7

What is cartilage? - overview

Answer 7

specialized CT - avascular - major ground substance is GAGs - lots of water and little bit of chondrocytes

Question 8

where is hyaline cartilage found?

Answer 8

fetal skeleton, epiphiseal plates, articular surface of joints (long bones), costal cartilages in ribs, cartilages of nasal cavity, larynx (thyroid, cricoid, arytenoids), rings of trachea and plates in bronchi

Question 9

where is elastic cartilage found?

Answer 9

pinna of external ear, external acousic meatus, auditory estuchian tubes, cartilage of larync (epiglottis, corniculate, cuneiform, cartialges)

Question 10

where is fibrocartilage found?

Answer 10

intervertebral disc (AF), pubic symphysis, med and lat menisci, attachment of ligament to bone, intersectino of some tendons and ligaments, articular discs