Exam 1 Flashcards
Bone
specialized form of connective tissue
anatomical structure of bones provides
rigid framework
levers for locomotion
protection
physiological organ of bone is
hemotopoigetic
reservoir for minerals
ends of bone is made of
cancellous (spongey) bone
middle of bone is made of
cortical (compact) bone
diaphysis
shaft
epiphysis
top of bone
bone from cartilage
endochondral
bone from fibrous tissue
intramembranous
intramembranous examples
skull, fascial bones, middle 1/3 of clavicle
lamellar bone
laid down slowly, parallel fibers
in adults
woven bone
laid down quickly, non-parallel fibers, osteocytes, variations
in children, bad in adults
bone is composed of
calcium hydroxyapatite, type 1 collegen, water, glycoaminoprotein
formula for hydroxyapatite
Ca10(PO4)6(OH)2
red bone marrow
axial
yellow bone marrow
arms/legs
gray bone marrow
bad
osteoblasts
progenitors- where stuff comes from
osteocytes
bone cells, many nuclei
osteoclasts
destroy bone and have brush border
endochondral sequence
epiphysis
reserve zone
proliferation
zone of hypertrophy: maturation, degeneration, provisional calcification
metaphysics
mesoderm
makes musculoskeletal system
syndactyly
no programmed cell death
endochondral ossification changes
length and height
intramembranous ossification changees
width
syndesmosis example
skull
tibia/fibula
synchondrosis
cartilage connecting bone
synostosis
connected with cartilage and eventually fuses
symphysis
2 opposing surfaces with hyaline cartilage and a joint with fibrocartilage
type 1 salter harris
only through physis
type 2 salter harris
involves metaphysis
type 3 salter harris
involves epiphysis
type 4 salter Harris
involves metaphysics and epiphysis
type 5 salter harris
crush growth plate
