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cartilage OFFICIAL
| Question | Answer | example |
|---|---|---|
| hyaline cartilage | - closely packed collagenous fibres - very, very fine - provide support w/ flexibility | - nasal septum - trachea & bronchi - support larynx |
| elastic cartilage | - not as closely packed - conspicuous elastic - - more stretchy elastic stand up after repeat bending | - external auricle of ear - epiglottis - auditory tube - larynx (cuneiform) |
| fibrocartilage | - coarse appearance - thick fibres - not as compact - highly compressible - great tensile strength | - pads knee joint - pubic bone (between pelvis) - intervertebrae disc |
| Cartilage | A connective tissue containing fibres called collagen Like all connective tissues, cartilage has 2 main characteristics | |
| 2 main characteristics | Non living matrix Consists of water: accounts for its ability to spring back to its original shape Contains numerous fibres made of a protein called collagen which are embedded in a firm matrix of protein - carbohydrate complex called chondrin | Living cells (not packed together) 2 major types of cells Chondroblasts - grow new cartilage by producing matrix Chondrocytes - mature cartilage cells typically foundin small groups within cavities called lucunae |
| perichondrium | Cartilage is surrounded by a fibrous membrane Acts to resists outward expansion when cartilage is compressed | Contains the blood vessels from which nutrients slowly diffuse through the matrix to reach cartilage cells internally as no nerves or blood vessels are present (avascular) |
Created by:
procrast
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