Mini 2 Bone And Cartilage

Front 1

What makes cartilage?

What makes bone?

Back 1

chondrocytes

osteoblasts

Front 2

What two demands must CT reconcile to function normally?

Back 2

surround themselves lots of ECM and maintain a way to get food for themselves

Front 3

Fibrous, Hyaline, Bone, Elastic : order them from least elastic to most elastic.

Back 3

Bone, fibrous, hyalin, elastic

Front 4

Differntiate strength and resilience.

Back 4

Strength: the capacity of a material to resist force without failure or permanent deformation; Resilience: the capacity of a material to recover its original shape after deformation.

Front 5

What happens when force exceeds strength?

Back 5

fracture

Front 6

Hyaline cartilage

Back 6

blueish white, immature bone, Type 2 collagen; epiphyseal plate(where it is responsible for the longitudinal growth

Front 7

Elastic cartilage

Back 7

Location (Found in structures subjected to repeated deformation or vibration) has perochondrium

Front 8

Fibrous catilage

Back 8

Type I collagen fibers; Comprises the annulus fibrosus of the intervertebral discs, the cartilage rings surrounding the “sockets” of the shoulder and hip joints, the attachments of tendon to bone, and the articular ends of bones that ossify in mesenchyme; no perichondrium

Front 9

Cartilage growth depends on which growth hormone and how does that hormone work?

Back 9

Cartilage growth depends mainly on the hypophyseal growth hormone Somatotropin. Somatotropin activates Somatomedin C which acts on chondrocytes

Front 10

Which hormones speed up chondrocyte function?

Slow it down?

Back 10

Growth hormone, thyroxin, testosterone


Cortisone, hydrocortisone, estradiol

Front 11

Describe basic steps of chrondogenesis

Back 11

mesenchyme cells give rise to chondroblasts which act to make chondrocytes which form isogenous groups

Front 12

interstitial cartilage growth

Back 12

Occurs when chondrocytes divide mitotically into isogenous clusters of daughter cells each secreting a small amount of matrix - epiphyseal plates of long bones, articular cartilage

Front 13

Appositional cartilage growth

Back 13

Occurs when chondrogenic cells in the inner layer of the perichondrium undergo mitotic division and begin to synthesize matrix. As matrix secretion continues, the chondroblasts drift away from the perichondrium, eventually becoming trapped within matrix lakes of their own manufacture. When matrix secretion subsides, the chondroblasts become mature chondrocytes.

Front 14

When does repair of damaged cartilage occur?

Back 14

Occurs when chondrogenic cells in the inner layer of perichondrium, or fibroblasts in synovial membrane, are recruited to fill the defect with new tissue

Front 15

What is 45% of bone made up of?

Back 15

Calcium Hydroxyapatite