Term
| Where does matrix come from? |
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Definition
| it is protein secreted from cells |
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Term
| what is the name given to cells that secrete cartilage matrix? |
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Definition
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Term
| true or false: growth of cartilage occurs only on the surface of cartilage as chondrocytes secrete matrix on the existing surface? |
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Definition
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Term
| what is the perichondrium made of? where is it located? what is its function? |
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Definition
| dense connective tissue made of interlacing protein (collagen) surrounding chondrocytes have capillaries |
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Term
| True or false: there are no blood vessels in cartilage matrix all oxygen and nutrients must get to chondrocytes by diffusing through cartilage matrix from blood vessels in the perichondrium |
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Definition
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Term
| true or false: pressure on cartilage through daily movement helps to move oxygen and nutrients to chondrocytes |
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Definition
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Term
3 types of cartilage: which of the following types of cartilage is in each of the following areas?
Rings holding your trachea open, epiphysis of a bone, a joint, intervertebral discs, external ear, cartilage that connects your ribs to your sternum |
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Definition
hyaline- connection between ribs and sternum, rings holding your trachea open
elastic- external ear
fibro- intervertebral discs, joint, epiphysis of bone |
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Term
| what is the main difference between cartilage and bone as supporting connective tissue |
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Definition
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Term
| what is the name given to cells that secrete bone? |
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Definition
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Term
| what makes the matrix of a bone hard |
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Definition
| calcium salts (calcium phosphates) |
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Term
| True or false: periosteum and perichondrium are very similar but periosteum is on the outer surface of cartilage and perichondrium is on the outer surface of bone |
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Definition
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Term
| what is the difference between an osteoblast and an osteocyte? |
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Definition
osteoblast is actively secreting matrix
osteocyte is trapped in matrix |
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Term
| what is located in the central canal of an haversian system or osteon? |
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Definition
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Term
| what are canaliculi filled with? what is their function? |
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Definition
| tissue fluid with oxygen and nutrients from capillaries bring oxygen and nutrients to osteocytes |
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