Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
Cartilage |
Hyaline Elastic Fibrocartilage |
Hay Spring Fib |
|
|
features of cartilage |
Mostly water 80% Lacks nerve fibers Lacks Blood vessels (avascular) recieves nutrients from perichondrium (membrane surrounding it) |
|
|
|
Ground substance |
Glycosaminoglycans (chondroitin sulfate and hyaluronic acid) Highly charged- generates electrostatoc repulsion -repulsion provides resistance to compression -loss of chondroitin sulphate is major cause of osteoarthritis |
|
|
|
cartilage structure and production |
Perichondrium give rise to chondroblasts then chondrocytes chondroblasts produce new ECM until the skeleton stops growing firmness of the cartilage matrix stops chondroblasts from becoming dispersed forms clumpw of lucunae -interstitual growth cartilage can be produced by surrounding perichondrium -appositional growth |
|
|
|
blast vs cyte |
chondroblast- immature form, larger , metabolically active, produces matrix chondrocytes- mature form, smaller, less metabolically active, maintains matrix |
|
|
|
Hyaline Cartilage |
Structure - glas, no blood vesseps or nerves, type 2 collagen fibers (fine, undetectable microscopically) chondrocytes (1-10% of cartilage volume)-lie in lucunae |
|
|
|
hyaline location and function |
Location- most of embryonic skeleton, Ends of long bones-articular cartilage, Anterior ends of ribs- costal cartilage Tips of nose-nasal cartilage Trachea, larynx-respiratory cartilage Function- smooth surface-smooth movement at joints. Provides support with flexibility and resilience , Absorbs compressive stress |
|
|
|
Elastic cartilage |
Almost same to Hyaline cartilage BUT more elastic fibers Function-maintains shape of structure Allows great flexibility Location-External ear, Epiglottis |
|
|
|
Fibrocartilage |
Rows of chondrocytes alternate with rows of collagen fibers within ECM Function: Strongest type of cartilage, Provides strong support and withstand heavy pressure Absorbs compression :Location-intervertal discs, pubic symphysis , Discs of knee joint |
|
|
|
Loose CT |
Areolar= protection, Support Distributed under epithelia fibers arranged randomly forms lamina propria packages organs surrounds caps |
|
|
|
Loose Ct |
Reticular= matterss like, provides support, forms scaffold of spleen through which blood cells move fine, spindle like fibers, provides structure and filtration |
|
|
|
Adipose |
Storage And Insulation white fat= fat containing adipocytes, richly vascularised, produce ATP BrownFat= lots of mitochondria(iron) uses lipid fuels to heat blood stream found in babies |
|
