Phase 1 week 5 PBL
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| show | Cartilage is a CONNECTIVE TISSUE consisting of a dense matrix of collagen fibres and elastic fibres embedded in a rubbery ground substance. Is strong and flexible.
🗑
|
||||
| What are the main cells in cartilage? | show 🗑
|
||||
| show | Chondrocytes = mesenchymal stem cells - they synthesise and maintain EM
🗑
|
||||
| show | It cushions bones at joints
🗑
|
||||
| show | In most species it is converted largely to bone with maturation
🗑
|
||||
| show | Forms most of the TEMPORARY SKELETON of the embryo. • During the embryonic development of most vertebrates, the skeleton forms as cartilage before most of it hardens to bone
🗑
|
||||
| List the three different types of cartilage and give where they are found | show 🗑
|
||||
| show | Cartilage is NOT INNERVATED (supplied with nerves) and therefore relies on diffusion to obtain nutrients. This causes it to heal VERY SLOWLY.
🗑
|
||||
| show | . Cartilage differs from bone in that it is AVASCULAR and its microarchitecture is less organised than bone. Cartilage is NOT INNERVATED (supplied with nerves) and therefore relies on diffusion to obtain nutrients. This causes it to heal VERY SLOWLY.
🗑
|
||||
| What is the matrix in cartilage produced by and what happens to them? | show 🗑
|
||||
| show | MATURE CARTILAGE CELLS = CHONDROCYTES
🗑
|
||||
| show | They occur, either singly or in groups, within spaces called LACUNAE (singular, lacuna) in the matrix
🗑
|
||||
| show | The surface of most of the cartilage in the body is surrounded by a membrane of dense irregular connective tissue called PERICHONDRIUM
🗑
|
||||
| show | Unlike other connective tissues, cartilage contains NO BLOOD VESSELS OR NERVES - EXCEPT in the perichondrium
🗑
|
||||
| show | • Few visible collagen fibres (in light microscope)
• Avascular
• Has perichondrium, except for articular cartilage
🗑
|
||||
| What does hyaline cartilage cover and where especially? | show 🗑
|
||||
| show | Hyaline cartilage
🗑
|
||||
| What is the matrix of hyaline cartilage mostly made up of? | show 🗑
|
||||
| show | Hyaline cartilage tissue provides SMOOTH SURFACES, enabling tissues to move/slide easily over each other, e.g. facilitating smooth movements at joints. It also provides flexibility and support
🗑
|
||||
| What is fibrocartilage? | show 🗑
|
||||
| show | A perichondrium
🗑
|
||||
| show | • Avascular
• Abundant collagen fibres
• Chondrocytes aligned
🗑
|
||||
| What is special about fibrocartilage? | show 🗑
|
||||
| Give three places where fibrocartilage tissue is found | show 🗑
|
||||
| show | Fibrocartilage
🗑
|
||||
| Give three places where elastic cartilage is found | show 🗑
|
||||
| show | Function is to provide support and maintain shape
🗑
|
||||
| show | Yes, and hyaline cartilage - it is just fibrocartilage that doesn't have a perichondrium
🗑
|
||||
| show | In elastic cartilage, which is yellowish in colour, the cartilage cells (chondrocytes) are located in a threadlike network of elastic fibres within the matrix of the cartilage
🗑
|
||||
| What do the elastic fibres in elastic cartilage look like under the microscope? What lies between the fibres in elastic cartilage? | show 🗑
|
||||
| What is the principal protein in elastic cartilage? | show 🗑
|
||||
| show | It's a STRUCTURAL PROTEIN arranged as fibres
-Abundant in skin, lung and blood vessels - stretch and elastic recoil
-Assembly into functional fibres requires the presence of a structural glycoprotein - FIBRILLIN
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
Aimee76