Embryonic Cartilage Slide label: Mammal cartilage

bone developing

Sarah Aurora W. Tabada

Cartilage• connective tissue consisting of a dense matrix

of collagen fibres and elastic fibres embedded in a rubbery ground substance.

• Chondroblasts o synthesizes the matrix, eventually embedded in the matrix

as chondrocytes.

• Chondrocytes o mature cartilage cells occurring, either singly or in groups, within

spaces (lacunae) in the matrix

• Perichondrium o membrane of  dense irregular connective tissue surrounding surface of

cartilageo Only site in the cartilage with blood vessels and nerves

Hyaline Cartilage• Most abundant• Structure:

- Consist of bluish-white, shiny ground elastic material with a matrix of chondroitin sulphate into which many fine collagen fibrils are embedded

- It contains numerous chondrocytes.

- Functions:- Provide smooth surfaces for easy movement and sliding of tissue over

each other. - Support movable joints between bones (reduce friction)- Provide flexibility and support- Support physical structure of embryo before bones form

Hyaline Cartilage• Location:

o Bronchio Bronchial Tubeso Costal Cartilageso Larynx (voice-box)o Noseo Tracheao Surface of bones at joints susceptible to wear

• Ends of the long bones and anterior ends of the ribs o Embryonic skeleton (i.e. in fetus)

(Gartner and Hiatt, 2014)

Images from slides

Whole Mount

40x Magnification

Perichondrium

Embryonic Connective Tissue

Chondrocytes

100x Magnification

Matrix