Exam 3- Chapter 6 Flashcards
Contain no blood vessels or nerves, mostly water to help spring back into shape
Skeletal Cartilage
dense connective tissue girdle contains blood vessels for nutrient delivery to cartilage, surrounds the skeletal cartilage
perichondium
most abundant skeletal cartilage
hyaline cartilage
provide support, flexibility and resilience
hyaline cartilage
Contain elastic fibers
Elastic cartilage
Contain collagen fibers and have the greatest tensile strength
Fibrocartilage
forms the long axis of the body and includes the ones of the skull, vertebral column, and rib cage
axial skeleton
consists of bones of the upper and lower limbs
appendicular skeleton
bones that are longer than they are wide
long bones
cube shaped bones; sesamoid bones
short bones
thin, flat slightly curves
flat bones
complicated shapes
irregular bones
function of bones
- support
- protection
- movement
- storage of minerals
- blood cell formation
- energy storage
- hormone production
round projection
tuberosity
narrow prominant ridge
crest
large, blunt, irregular
trochanter
small rounded projection
tubercle
raised area above condyle
epicondyle
sharp slender projection
spine
any bony prominence
process
bony expansion carried on a narrow neck
head
smooth, nearly flat articular surface
facet
rounded articular projection
condyle
armlike bar
ramus
canal or passageway
meatus
cavity within a bone
sinus
shallow, basinlike depression
fossa
narrow slitlike opening
fissure
round or oval opening through a bone
foramen
bone tectures
Compact
spngy
dense outer layer
compact bone
cancallos bone- honeycomb of trabeculae
spongey bone
contains fat and is called the yellow marrow cavity
medullary cavity
nerve fiber, nutrient blood vessels, and lymphtic vessels enter the bolld via
nutriet foramina
covered compact bone on the outside
periosteum
covered spongy bone within
endosteum
spongy in flat bones
diapole
bone marrow is between the _______
trabeculae
stem cells in periosteum and endosteum that give rise to osteoblasts
osteogenic cells
bone forming cells
osteoblasts
mature bone cells
osteoctes
cells that break down and reabsorb the bone matrix
osteoclasts
the structural unit of a compact bone
osteon (Haversian system)
small cavities that contain osterocytes
lacunae
hairlike canals that connect lacunae to each other
canaliculi
lie at right angles to the long axis of the bone and connect the blood and nerve supply of the periosteum to those in the central canals and the medullary cavity
volkmans cannal
align along line of stress
trabeculae
osteoid
organic bone matrix secreted by osteoblasts
bone tissue formation
osteogeneis
staged of bone formation
- bone formation- until 2nd month of development
- postnatal bone growth- until early adulthood
- bone remodeling an repair-lifelong
types of ossification
- intramembranous-flat and cranial bones
2. endochondrial-all other bones
increase in length of long bones in postnatal bone groth
intersitial growth
increase thickness and remodeling of all bones by osteoblasts and osteoclasts on bone surfaces
appositional growth
stimulates epihyseal plate activity
growth hormones
modulates activity of growth hormone
thyroid hormone
promote adolescent growth spurts and end growth by conneting epiphysieal plate closure
testosterone
a bone grows or remodels in response to forces or demands placed upon it
Wolffs law
four classifications of bone fractures
- position
- completless
- orientation
- penetration of the skin
stages in the healing of a bone fracture
- hematoma forms
- fibrocartilaginous callus forms
- bony callus forms
- bone remodeling