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Bone and Cartilage
Bone and Cartilage Flash cards
Question | Answer |
---|---|
Name parts of the body made of cartilage | Xiphoid Process, Costal Cartilage, Vertabra Discs, External Ear (Fibrous) Epiglotis (Elastic) |
What does chondroblasts give rise to? | Chondrocytes |
What do chondrocytes sit in? | They sit in lacunae and if you remove them then you will have lacuna |
Is cartilage vascular or avascular? | Cartilage is avascular and does not have any capalaries in them |
What kind of structure does type 2 collagen have? | Type 2 collagen is a homotrimer in the interterritorial matrix |
Once cartilage is damaged what happens? | Once torn cartilage cannot repair |
What type of collagen is fibrocartilage? | Type 1 |
What is hydroxylpatite? | It is the mineral in the bone |
What is the tide mark? | It is where cartilage meets bone |
What happens if you remove mineral from bone? Organic material? | Removal of mineral causes bone to lose its rigidity and it is now flexable. Removal of organic material causes it to become brittle |
Name parts of the body with hyaline cartilage | Anterior ribs, Joints Nose Rings that support the trachea Xiphoid process |
Name parts of the body with elastic cartilage | External ear, Epiglotis |
Name parts of the body with fibrocartilage | Intervertebral discs Pubic symphisis |
What is the difference between fibrocartilage and hyaline cartilage? | Fibrocartilage has type I collagen in addition to Type II, aggrecan and link protein |
What is appostiitonal growth? | Happens at the edge where chondroblasts proliferate into chondrocytes |
What is chondrotin sulfate? | A GAG portion of proteoglycan. It is a component of the ECM. |
What are isogenous groups? | Chondrocytes that arise from the same progenitor chondrocyte. This happens through interstial growth. |
Definition of pericardrium | A dense irregular connective tissue containing fibroblast and Type I collagen. |
Is cartilage avascular or vascular? | Avascular |
Can cartilage repair it's matrix? Can it repair tears or fractures? | Cartilage can repair it's matrix but not tears. |
Smallest bone in the body? | Ossicles of the middle ear: incus, malleus and stapes. |
What does the tide mark refer to? | Where cartilage meets bone |
What are osteoclasts? | Cell that chews up the matrix. They form by fushion |
When bone gets eroded by osteoclasts what is the outcome? | It is replaced by osteoblast. |