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42 Cards in this Set
- Front
- Back
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The immature cells that produce osteoid are called
a. osteocytes b. osteoblasts c. osteoclasts d. osteons |
B - osteoblasts
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Hyaline cartilge is found in all of the following structures except the
a. trachea b. larynx c. pubic symphysis d. fetal skeleton |
C- pubic symphysis
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A small space within compact bone housing an osteocyte is termed a
a. lamella b. lacuna c. canliculus d. medullary cavity |
B- lacuna
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Endochondral ossification begins with a _____ model of bone
a. dense regular connective tissue b. hyaline cartilage c. fibrocartilage d. elastic cartilage |
B- hyaline cartilage
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Production of new bone ____ as a result of increased sex hormone production at puberty
a. is not affected b. slows down c. increases slowly d. increases rapidly |
D- increases rapidly
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An epiphyseal line appears when
a. epiphyseal plate growth has ended b. epiphyseal plate growth is just beginning c. growth in bone diameter is just beginning d. a primary ossification center first develops |
A- epiphyseal plate growth has ended
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The condition of inadequate ossification that may accompany aging and is a result of reduced calcification is called
a. osteopenia b. osteomyelitis c. osteitis d. osteosarcoma |
A- osteopenia
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A fracture of the distal end of the radius that produces a characteristic "dinner fork" deformity is a ____ fracture
a. displaced b. Colles c. Pott d. stress |
B- Colles
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The femur is an example of a
a. flat bone b. long bone c. irregular bone d. short bone |
B- long bone
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A large, rough projection of a bone is termed a
a. fossa b. tuberosity c. ramus d. tubercle |
B- tuberosity
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knobby end of a long bone
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epiphysis
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formed by intramembranous ossification
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flat bone of skull
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organic components of bone matrix
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osteoid
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stimulates osteoclasts to become active
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parathyroid hormone
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lines medullary cavity
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endosteum
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calcium phosphate/hydroxide crystals
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hydroxyapatite
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responsible for bone resorbtion
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osteoclasts
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increases calcium absorption in intestine
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vitamin D
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formed from trabeculae
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spongy bone
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contains concentric lamallae
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osteon
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blast
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forming cell
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cyte
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mature cell
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clast
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destroying cell
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region in bone between the diaphysis and epiphysis containing epiphysial (growth) plate
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metaphysis
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forms bone
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osteoblast
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3 types of cartilage
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1. Hyaline - most common but weakest
2. Fibrocartilage- strongest type 3. Elastic - very elastic |
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type of cartilage found in the ear and epiglottis
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elastic cartilage
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type of cartilage found in meniscus, IV disc, pubic symphysis
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fibrocartilage
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growth in bone diameter
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appositional growth
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the elongated usually cylindrical shaft of a bone
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diaphysis
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growth in bone length
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interstitial growth
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the formation and development of bone
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ossification
(osteogenesis) |
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spaces within the matrix of the bone where osteocytes reside
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lacunae
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develops from mesenchyme to produce flat bones of the skull, some facial bones, the mandible and central protion of the clavicle
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intramembranous ossification
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produce either another stem cell or an osteoblast
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osteoprogenitor
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surrounded by dense connective tissue called perichondrium
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hyaline cartilage
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production of blood
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hemopoiesis
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Cells are called chondrocytes. They secrete a gel-like extracellular matrix containing collagen and elastic fibers.
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cartilage
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mature cartilage is ____
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avascular
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relatively small channels that connect adjacent lacunae, allow for metabolic interactions between osteocytes
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canaliculi
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begins with a hyaline cartilage model and produces the majority of bones in the body
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endochondral ossification
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the cylindrical structure called the osteon or the Haversian system is the basic structural and functional unit of mature ____
osteons run parallel to the shaft of the bone |
Comapct Bone
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