Cartilage Flashcards
Cartilage
a) makes up most of the fetal skeleton
b) its extracellular matrix is rich in glycosaminoglycans and proteoglycans
c) it is one of the types of connective tissue
d) it has a high number of blood vessels and therefor it regenerates quite easily
A,b,c
Cartilage
a) macroscopic pieces of hyaline cartilage are white to blue, elastic cartilage is
rather yellow
b) a part of the auditory (Eustachian) tube is made of elastic cartilage
c) its isogenous groups are clusters of chondrocytes formed through mitosis of a single progenitor cell
d) the frontal bone of a fetus (before its ossification) is made of hyaline cartilage
A,b,c
Cartilage (which statements are correct)
a) there are three basic types of cartilage in humans
b) hydration of cartilage depends on polyanionic chains of glycosaminoglycans
c) contains chondroblasts, but no chondrocytes
d) the cells of the cartilage can be found in the lacunae within the matrix
A,b,d
Elastic cartilage
a) its matrix contains branched fibres that can be stained with orcein
b) can be found in the fontanellae (fonticuli) of the skull of a newborn child
c) unlike the hyaline cartilage, it has no perichondrium
d) makes e.g. the cuneiform cartilages
A,d
Elastic cartilage
a) has no perichondrium
b) can be found e.g. in the epiglottis
c) has no isogenous groups at all
d) contains elastic fibrils, but it is lacking collagen fibrils
B
Fibrous cartilage
a) it makes e.g. the midline cartilaginous joint of the pubic symphysis
b) makes several layers (lamellae) of the annulus fibrosus of the intervertebral discs
c) it contains type I collagen
d) it has an extraordinary thick (multi-layered) perichondrium
A,b,c
Hyaline cartilage
a) can be found e.g. in the external ear (pinna)
b) chondrocytes have a high metabolic rate and are incapable of anaerobic glyco-
lysis
c) during growth, its extracellular matrix is produced by chondroclasts
d) it originates from mesenchyme
D
Hyaline cartilage
a) makes epiphyseal growth plates of long bones
b) has an homogeneous matrix, because it does not contain any extracellular fibres
c) it contains type II collagen
d) is found on surfaces of joints
A,c,d
Hyaline cartilage
a) it can resist pressure due to the shock-absorbing glycosaminoglycans that bind
water
b) chondronectin binds the chondrocytes with the surrounding collagenous extra-
cellular matrix
c) the matrix bordering the lacunes of chondrocytes is more basophilic than the
remaining matrix
d) does not contain isogenous groups
A,b,c
Perichondrium
a) it is avascular (it has no blood vessels)
b) it is important for the appositional growth at the edge of the cartilage
c) it contains chondrocytes and chondroblasts
d) it covers the surface of joint cartilages and produces synovial fluid
B,c
