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Ch 6 Skeletal Tissue
from marieb textbook skeletal tissue
Question | Answer |
---|---|
begins at each epiphysis | secondary ossification |
canal like passage | meatus |
bone deposition | osteoblast |
fracture at epiphyseal plate | epiphyseal fracture |
hyaline cartilage | endochondrial |
rounded articular projection | condyle |
blood clot forms | hematoma |
2 words for bone development | ossification, osteogenesis |
bone fragments into many pieces | comminuted |
thin plates | trabeculae |
thin and flat ex. sternum | flat bone |
very little blood formation in | long bones |
connect lacunae to each other | canaliculi |
covers bone (external) supplies bone with blood vessels, nerves | periosteum |
fracture at skull | depression |
control of remodeling | mechanical, hormonal |
stimulated by growth hormone | longitudinal growth |
increase in bone diameter | appositional growth |
what is the diaphysis composed of? | compact bone |
what is articular cartilage composed of? | hyaline cartilage |
spaces for bone cells | lacunae |
breaks incompletely | greenstick fracture |
groove | furrow |
2 types of tissue | cartilage, bone |
functions of bones | storage, protection, movement, support |
longer than wide ex. femur | long bone |
complex ex. vertebrae | irregular |
expanded ends of a long bone | epiphysis |
unit of bone structure | osteon |
site of most blood cell production | flat and irregular bones |
small rounded projections | tubercle |
large rounded projection | tuberosity |
raised area on or above condyle | epicondyle |
bony expansion on narrowed neck | head |
narrow ridge of a bone | crest |
shallow basin like depression | fossa |
weakening of bones increased removal of calcium | osteoporosis |
crushed | compression |
cavity in bone filled with air line with mucous membrane | sinus |
bone resorption | osteoclast |
broken ends of bone protrude through soft tissue increased risk of infection | compound fracture |
types of bone tissue | compact, spongy |
within a tendon ex. patella | sesamoid |
shaft of a long bone | diaphysis |
what does the epiphysis articulate with? | other bones to form a joint |
run crossways where blood vessels and nerves enter bone | volkmann's canals |
splint that connect ends of bones | fibrocartilage callus |
very large, blunt irregular shaped proccess | trochanter |
replace clot w/ collagen fibers | fibroblast |
flat bone formation within a fibrous membrane ex. sternum, skull, scapula | intramembranous |
smooth nearly flat articular projection | facet |
narrow ridge of bone less prominent than crest | line |
what does the articular cartilage do? | covers ends of bones provides smooth surface for movement |
armlike bar of bone | ramus |
mineral salts deposited around collagen fibers for hardness | hydroxyapatites |
twisting | spiral fracture |
breaks cleanly ends don't penetrate skin | simple fracture |
blood cell production (red marrow) | hematopoiesis |
b/t skull bones ex sutures | wormian |
round or oval opening through a bone | foramen |
what is the epiphysis composed of? | inner spongy, outer compact |
characteristics of short, flat, irregular bones | sandwich like, thin layer of compact bone on top and bottom, inner spongy |
central hollow core of osteon | haversian canal |
concentric rings with bone matrix | lamellae |
begins @center of diaphysis | primary ossification |
narrow slit like opening | fissure |
lines internal bone surface contains osteoclasts | endosteum |
sharp, slender, often pointed | spine |
what does the diaphysis surround? | medullary cavity (yellow marrow) |
maintenance of matrix | osteocytes |
2 components of embryonic skeleton | fibrous membranes, hyaline cartilage |
cube like ex. carpals | short bones |
junction of diaphysis and epiphysis | epiphyseal line |