Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Cartilage
Histology - Cartilage
| Question | Answer |
|---|---|
| Which part of the body does cartilage belong to? | The skeletal system |
| Is cartilage vascular or avascular? | Avascular |
| What is the consistency of cartilage? | Firm in consistency |
| What are the 3 structures of cartilage? | Matrix, Cells, Perichondrium |
| In cartilage, what are the 2 parts of the matrix? | Ground substance, fibers |
| What is the ground substance in cartilage made up of, chemically? | Glycoproteins and proteoglycans |
| What is the main proteoglycan in ground substance of cartilage? | chondroitin sulfate |
| What is the function of the main proteoglycan of the grounud substance of the cartilage? | Firm consistency of the cartilage matrix |
| What are the fibers of cartilage made up of? | Collagen or elastic, depending on type of cartilage |
| What are cartilage cells called? | chondrocytes |
| What is the shape of chondrocytes? | flat to round cells |
| Groups of chondrocytes are called... | cell nests |
| Another name for cell nests is | Isogneous groupd |
| What are isogneous groups surrounded by? | capsules of matrix |
| What type of cartilage is the perichondrium? | A membrane investing cartilage |
| What is the outer layer of the perichondrium called? | Fibrous layer |
| What is the inner layer of the perichondrium called? | Inner cellular layer |
| What is another name for inner cellular layer | Chondrogenic |
| T/F The chondrogenic layer is poor in blood vessels. | FALSE. The chondrogenic layer is RICH in blood vessels |
| What is the function of the perichondrium? | Nutrition, growth, and regeneration of cartilage |
| What are the two mechanisms of growth of cartilage? | Appositional and Interstitial |
| Describe appositional growth | Adding layers of cartilage on outer surface |
| What is responsible for appositional growth? | Activity of chondrogenic layer of the perichondrium |
| What does interstitial growth mean? | Growth from within |
| How does interstitial growth occur? | Cellular divisions and secretion of cartilage matrix by chondrocytes |
| 3 types of cartilage. | Hyaline, Elastic, and Fibrocartilage |
| Is matrix present in abundance or not at all in hyaline cartilage? | Abundant |
| Describe cells of hyaline cartilage. | Widely separated |
| In hyaline cartilage, how many cells do the cell nests contain? | up to 8 cells. |
| Describe the fibers in the matrix of hyaline cartilage. | No apparent/ no visible fibers. |
| Which cartilage stains basophilic? | Hyaline cartilage |
| Perichondrium is present except... | on articular cartilage |
| Where is hyaline cartilage found? (3) | Costal cartilage, nasal, articular, and some laryngeal cartilages |
| Describe the cells of elastic cartilage. | Cells are condensed with less matrix in between. |
| How many cells do the nests of elastic cartilage contain? | Up to 4 cells |
| What always covers the outer surface of elastic cartiage? | Perichondrium |
| Where is elastic cartilage found? (3) | Cartilage of the ear, Eustachian tube, and some laryngeal cartilage |
| Fibrocartilage has matrix rich in.... | Branching collagen bundles |
| In fibrocartilage, where are chondrocytes located? | Between bundles |
| How do chondrocytes, in fibrocartilage, appear? | Oval, mostly single. |
| Are cell nests common or uncommon in fibrocartilage? | Not common. |
| Cell nests in fibrocartilage are made up of how many cells? | 2 |
| Since fibrocartilage is found in joints, what is special about the perichondrium? | There is none |
| Locations of fibrocartilage... | IVD, cartilage of pubic symphysis, cartilages of the knee joint, cartilage disc of TMJ. |
| What is an IVD made up of, generally? | Annulus fibrosus and Nucleus pulposus. |
| What is the annulus fibrosus? | Outer concentric layers of fibrocartilage |
| What is the nucleus pulposus? | A central mass of gelatinous amorphous material. |
| In what direction fo the collagen fibers of the annulus fibrosus run? | Parallel to each other but in an oblique direction |
| Where do the collagen fibers attach in the IVD? | To hyaline cartilage plate on vert bodies above and below the IVD |
| Where do the outermost layers of the annulus atach? | Directly to the vertebral bone |
| What is the nucleus pulposus made up of? | Chondrocytes, fine collagen fibers, rich in ground substance. |
| How does ground substance react with water? | It binds water into the nucleus. |
| What is replaced as age advances and more and more collagen develops? | The entire nucleus pulposus. |
Created by:
thenathan