Term
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Definition
Hyaline Elastic Fibrocartilage |
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Term
| Most common type of cartilage |
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Definition
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Term
| Type of cartilage that makes up the fetal skeleton |
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Definition
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Term
| Hyaline cartilage is found in the articular surfaces of: |
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Definition
Larynx Joints Trachea Bronchii |
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Term
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Definition
| dense connective tissue capsule around most cartilage |
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Term
| Perichondrium has two layers: |
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Definition
- outer fibrous
- inner cellular (chondrogenic, mesenchymal)
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Term
| the blood supply for cartilage comes from: |
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Definition
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Term
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Definition
| synthesize extracellular matrix |
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Term
| Extracellular Matrix: Composition |
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Definition
| type-II collagen, proteoglycans, chondronectin (a glycoprotein) |
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Term
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Definition
| group of 2-8 chondrocytes deep within cartilage |
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Term
| cartilage plays an important role in the growth of: |
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Definition
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Term
| the shock-absorbant nature of cartilage is due to its |
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Definition
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Term
| the hydrophilic nature of cartilage is due to |
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Definition
| proteoglycan aggregates in the groud substance that trap large amounts of water because of their negatively charged amino acid side chains. |
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Term
| besides shock absorbance, the hydrophilic nature of cartilage is responsible for its |
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Definition
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Term
| Collage Type II: big fibers or small fibrils? |
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Definition
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Term
| is elastic cartilage surrounded by a perichondrium? |
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Definition
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Term
| where is elastic cartilage typically found? |
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Definition
| external ear, ear canal, epiglottis |
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Term
| what is the most visible differentiator for hyaline vs. elastic cartilage? |
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Definition
| elastic fibers are visible in the matrix of elastic cartilage. |
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Term
| the matrix of elastic cartilage is rich or poor in collagen? |
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Definition
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Term
| the zone immediately surrounding a lacuna in elastic cartilage is the |
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Definition
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Term
| the area between lacunae and not immediately adjacent to them is the |
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Definition
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Term
| which stains more acidophilic, the territorial or interterritorial matrix? Why? |
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Definition
| The territorial, because it has less collagen and more glycosaminoglycans. |
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Term
| Fibrocartilage is a combination of: |
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Definition
| hyaline cartilage and dense collagenous connective tissue |
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Term
| fibrocartilage can be identified on a slide by the presence of: |
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Definition
| acidophilic type-I collagen fibers in layered arrays |
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Term
| amorphous ground substance is more or less abundant in fibrocartilage than in other cartilage? |
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Definition
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Term
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Definition
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Term
| chondrocytes are nourished by |
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Definition
| diffusion through the matrix from capillaries |
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Term
| the capillaries that nourish cartilage are located in the |
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Definition
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Term
| all cartilage originates from the: |
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Definition
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Term
| differentiation of mesenchymal cells into cartilage is stimulated by |
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Definition
| increased cell to cell contact after mesenchymal condensation |
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Term
| a chondroblast becomes a chondrocyte when: |
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Definition
| it becomes completely surrounded by cartilage |
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Term
| when chondrocytes multiply within a lacuna, they form an |
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Definition
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Term
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Definition
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Term
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Definition
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Term
| Interstitial growth of cartilage occurs in |
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Definition
| the fetal skeleton, epiphyseal plates, articular cartilages |
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Term
| appositional growth of cartiage occurs when |
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Definition
| cells in the chondrogenic layer of the perichondrium differentiate into chondroblasts, secrete matrix materials on surface. |
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Term
| true or false: perichondrium surrounds fibrocartilage |
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Definition
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Term
| isogenous groups originate from ______ |
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Definition
| mitotic division of a single cell. |
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Term
| What are the two main ingredients of ground substance? |
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Definition
| proteoglycans and glycoproteins |
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Term
| Are there chondroblasts in the perichondrium? |
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Definition
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Term
| Will we be asked to identify chondroblasts in cartilage? |
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Definition
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Term
| Is the cartilage matrix acidophilic or basophilic? Why? |
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Definition
| Basophilic, because of the high concentration of GAGs in proteoglycans |
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Term
| 4 places fibrocartilage is found: |
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Definition
transitions between tendons/ligaments and cartilage or bone intervertebral disks pads within knees pelvic symphysis |
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Term
| all connective tissues are derived from the: |
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Definition
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Term
| 3 functions of fibrocartilage |
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Definition
| resists compression, prevents bone-to-bone contact, limits relative movement |
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Term
| intersitial growth of cartilage happens throughout the life cycle: true or false |
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Definition
| false. Only early in life. |
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Term
| how is damage to hyaline and elastic cartilage repaired in young animals? |
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Definition
| both interstitial and appositional growth |
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Term
| cartilage repair in adults is mediated by |
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Definition
| fibrous connective tissue |
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Term
| the least repair-able of cartilage types is: |
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Definition
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Term
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Definition
| immovable joint, found only in the skull, made of dense irregular fibrous connective tissue |
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Term
| Fibrous articulations include: |
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Definition
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Term
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Definition
| a fibrous joint in the skull made of dense irregular connective tissue. Some will ossify. |
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Term
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Definition
| bones joined with more connective tissue than in a suture, allowing some movement - as in between tibia and fibula |
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Term
| Cartilaginous articulations include: |
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Definition
| joints with little to no movement, no cavity. synchondrosis, symphysis |
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Term
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Definition
| bones held together by hyaline cartilage, as in ribs and sternum. eventually ossify. |
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Term
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Definition
| bones held together by fibrocartilaginous pad or disc. |
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Term
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Definition
| moveable joint with articular cartilage, joint capsule, synovial cavity containing synovial fluid. |
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Term
| does articular cartilage have perichondrium? |
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Definition
| No, even though it is hyaline. |
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Term
| a meniscus is composed of |
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Definition
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Term
| Why is collagen not visible in a light microscope slide of hyaline cartilage? |
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Definition
| the collage is type II, small fibrils, and the optical density is close to that of the ground substance. |
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Term
| What is responsible for the basophilia of the cartilage matrix? |
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Definition
| high amounts of GAG (proteoglycans) with negatively charged carboxyl and sulfate groups |
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Term
| What type of collagen is present in elastic cartilage matrix? |
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Definition
| Type II fibrils - just less of it than in hyaline. |
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Term
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Definition
| white connective tissue ring containing nucleus pulposus, found in intervertebral joints |
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Term
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Definition
| gelatinous material surrounded by annulus fibrosus between intervertebral disks |
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Term
| 3 characteristics of joint capsule: |
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Definition
| synovial membrane, synovial villi, blood vessels in connective tissue |
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Term
| what is responsible for basophilia in cartilage? |
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Definition
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