Cartliage Prac. Quiz Test 1

Question Answer
Cartilage or bone? resists twisting forces bone
Cartilage or bone? compressible cartilage
Cartilage or bone? resists shearing forces cartilage
Cartilage or bone? lacks nerves and blood vessels cartilage
Cartilage or bone? flexible cartilage
Hyaline, elastic, or fibrocartilage? epiglottis elastic
Hyaline, elastic, or fibrocartilage? intervertebral disks fibrocartilage
Hyaline, elastic, or fibrocartilage? fetal skeleton hyaline cartilage
Hyaline, elastic, or fibrocartilage? nose hyaline cartilage
Hyaline, elastic, or fibrocartilage? articular surface of bones in movable joints hyaline cartilage
Hyaline, elastic, or fibrocartilage? costal cartilage hyaline cartilage
Hyaline, elastic, or fibrocartilage? trachea/airways hyaline cartilage
The _________is the membrane surrounding cartilage. perichondrium
Has fibroblasts, dense irregular connective tissue Outer fibrous layer of perichondrium
Has chondroblasts which lay down new matrix inner chondrogenic layer of perichondrium
T/F Chondroblasts mature into chondrocytes true
Chondrocytes are located in spaces called _______. lacunae
lengthening of cartilage appositional growth
thickening of cartilage interstitial growth
division of chondrocytes and production of new matrix within cartilage appositional growth
production of new matrix on surface of cartilage by chondroblasts interstitial growth
T/F Bones are non-living, static structures that never change false
T/F Collagen fibrilis are prominent in the extracellular organic component of bone tissue true
T/F Crystalized hydroxyapatites are prominent in the inorganic extracellular component of bones true
____________ and ___________ are prominent in hydroxapaptites Ca++ and phosphates
List six functions of bones support, protection, movement, mineral storage, blood cell production, fat storage
__________ are cells that lay down the extracellular matrix in bone tissue osteoblasts
_________ are mature bone cells that maintain existing bone matrix osteocytes
_________ are cells that give rise to osteoblasts osteoprogenitor cells
________ are cells that break down the extracellular matrix in bone tissue to release minerals or allow for bone remodeling. osteoclasts
T/F Osteoblasts mature into osteocytes true
T/F Osteocytes are connected to each other by thin processes through which cytoplasm is circulated to deliver oxygen and nutrients to the cells true
________ bone is the dense outer layer of a bone that is highly resistant to stresses compact bone
_______ is the internal honeycomb of trabeculae within a bone spongy bone
_______ are rod-like structures within spongy bone trabeculae
long, short, flat, irregular, or sesamoid? Parietal bone flat
long, short flat, irregular, or sesamoid? Rib flat
long, short flat, irregular, or sesamoid? Vertebra irregular
long, short flat, irregular, or sesamoid? Patella (knee cap) sesamoid & short
long, short flat, irregular, or sesamoid? Humerus (upper arm bone) long
long, short flat, irregular, or sesamoid? carpal (wrist bone) short
long, short flat, irregular, or sesamoid? metacarpal (hand bone) long
long, short flat, irregular, or sesamoid? Scapula (shoulder blade) flat
long, short flat, irregular, or sesamoid? Os coxa (pelvic bone) irregular
The ________ is the shaft of a long bone. diaphysis
The ________ is the end of a long bone epiphysis
In a long bone, the _______ is the region between the diaphysis and epiphysis. metaphysis
The _______ is the growing region within the metaphysis at the end of a long bone epiphyseal plate
T/F The epiphyseal plate is a layer of cartilage within the metaphysis true
T/F After puberty when the growth of a long bone stops, the epiphyseal plate disappears and is replaced by the epiphyseal line. true
The _______ is the membrane around a bone periosteum
Inner layer of periosteum with osteoprogenitor cells, osteoblasts, and osteoclasts Osteogenic/cellular layer
Outer layer of periosteum with fibroblasts and dense irregular connective tissue fibrous layer
The ______ is the membrane around the spaces inside a bone endosteum
T/F The cartilage on the articular surfaces of long bones typically lacks a perichondrium, or has a discontinuous perichondrium. true
T/F Short, flat, and irregular bones have a medullary cavity filled with yellow marrow false
An __________ is a column of concentrentic layers of matrix in compact bone osteon
T/F Osteons are weigh-bearing columns, and in long bones typically run along the length of a bone true
T/F In an osteon the collagen fibers and hydroxyapatite crystals in adjacent lamellae are oriented in the same direction to resist twisting. false

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