Term
| Where do chondrocytes live in? |
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Definition
| a lake also called a lacunae. |
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Term
| There are 2 types of matrix in cartilage- what are they are their color differentiations? |
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Definition
| Territorial matrix- stains lighter
Interterritorial matrix- stains darker |
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Term
| True or False? There are vessels and nerves that run through cartilage. |
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Definition
| FALSE! no vessels or nerves are present in cartilage. |
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Term
| Does pain occur in joint from cartilage? |
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Definition
| Nope, because it is not innervated. |
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Term
| What are the 2 types of growth in cartilage? What's the difference? |
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Definition
| Apposistional: growth from outside
Intersitial: growth from within
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Term
| Isogenous groups occur in intersitial growth when multiple cells cluster together- does this happen in bone cell growth? |
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Definition
| No. There is only one cell per one lecunae in bone cell growth. |
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Term
| What is the perichondrium of cartilage? |
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Definition
| the outer layer. A source of cartilage stem cells. |
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Term
| What type of cartilage does not have perichondrium? |
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Definition
|
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Term
| What are the 3 types of cartilage? |
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Definition
| Hyaline (glassy), Elastic and Fibrocartilage |
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Term
| What parts of the body is hyaline cartilage found? |
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Definition
| In the fetal skeleton
On articular surfaces of bone
In the respiratory tree |
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Term
| Where in the body is elastic cartilage found? |
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Definition
|
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Term
| An elastic stain is required to distinguish between what 2 types of cartilage? |
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Definition
|
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Term
| What color does an elastic stain elastic cartilage? |
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Definition
|
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Term
| Where in the body is fibrocartilage found? |
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Definition
| Intervertebral disks, menisci of the stifle joint and attachments to bone- tendons and ligaments. |
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Term
| Osteoblasts do what to bone? |
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Definition
| They Build Bone those osteoBlasts do! |
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Term
| What d osteoblasts secrete which then mineralizes? |
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Definition
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Term
| Osteocytes live where in the bone. |
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Definition
| Osteocytes live WITHIN the bone. |
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Term
| OsteoClasts Cut bone, thus remove bone. When this occurs, what is formed in the bone? |
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Definition
| a Howship's lacunae or depression in bone formed by the osteoclasts. |
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Term
| What colors do the matrix in collagen of bone appear? And what is required to see the collagen in bone? |
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Definition
| Matrix appears red
Collagen appears yellow but polarized light is required. |
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Term
| What type of organization in bone is ONLY in young animals or in immature bone? |
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Definition
| Woven Bone which has haphazardly arranged collagen fibers. |
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Term
| Lamellar bone occurs in mature bone and has what orientation of its collagen fibers? |
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Definition
| Parallel collagen fibers, which makes lamellar bone stronger than woven bone. |
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Term
| Where are haversian canals located in relation to osteons? |
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Definition
| Haversian canals are located at the center of osteons and blood vessels and nerves run through these canals. |
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Term
| Compact bone is solid bone thus it has minimal what? |
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Definition
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Term
| What configuration of bone has bone marrow between trabeculae, and don't call it spongy!? |
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Definition
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|
Term
| What are the 2 bony envelopes: on outside and one inside? |
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Definition
| Periosteum- outer
Endosteum- inner |
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Term
| What are the 3 "steps" to endochondral ossification? |
|
Definition
| Cartilage grows
mineralizes
finally it ossifies |
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|
Term
| Do a physis have longitudinal or horizontal growth? |
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Definition
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Term
| What is the first layer of the physis? |
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Definition
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Term
| What is the layer of a physis called where condrocytes are stacked tightly on top of each other? |
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Definition
| proliferating condrocytes. |
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Term
| Where is the physis most weak? (what layer?) |
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Definition
| The hypertrophied chondrocyte layer. |
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|
Term
| What comprises primary spongiosa (2 layers of the physis)? |
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Definition
| Calcified cartilage and woven bone. |
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Term
| What are the 2 types of bone formation? |
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Definition
| endochondral ossification
intramembranous ossification |
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Term
| Intramembranous ossification does not involve cartilage, what does is involve (what does the bone form from)? |
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Definition
| condensed mesenchymal cells.
osteoprogenitor cells to osteoblasts. |
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Term
| What bones in the body have intramembranous ossification? |
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Definition
| Flat bones. like in the skull. |
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|
Term
| What are the 3 types of joints? |
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Definition
| Synarthroses
Amphiarthroses
Diarthroses |
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Term
| Synarthroses joints occur where in the body? |
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Definition
| In he sutures of the skull and do NOT move! |
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Term
| Where do amphiarthroses joints occur? |
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Definition
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Term
| Where do diarthroses (synovial) joints occur? |
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Definition
| At the ends of bones covered by hyaline cartilage. Synovial membrane lines the inside of the joint and synoviocytes produce synovial fluid. |
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|
Term
| What does synovial fluid provide for the joint? |
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Definition
| lubricates the joint and provides nutrients to the cartilage. |
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