Musculoskeletal & Fractures, Amputations Flashcards
______ is composed of cells, protein matrix, and mineral deposits
Bone
Three basic cell types of bone are?
Osteoblasts
Osteocytes
Osteoclasts
–bone forming cells, secrete bone forming cells
osteoblasts
mature bone cells, help with bone maintenance
osteocytes
bone absorption cells, dissolving and reabsorbing bone
osteoclasts
t/f: bone development happens more rapidly in a kids than an adult, and the bone healing process is better in kids
true
bone regrowth slows at ____ years of age
physical activity helps bone growth
20
t/f: nutrient absorption is really important
hormones are really important for bone growth
true
______ = Bone formation
Osteogenesis
____________ _________ and _________ __________ – acts to stimulate bone formation and remodeling
Physical activity, weight bearing
Good diet is necessary for bone health – ______ mg of calcium is needed every day to maintain bone health
1500
___________ ____________happens in four areas:
Bone marrow
Bone cortex
Periosteum
External soft tissue
Fracture healing
t/f: a fracture is a break
true
Bone marrow –where ______ are formed
osteoblasts
Bone cortex –where new ______ are formed
osteons
Periosteum –where _________ _________ or ___________ _________ is formed, formed through intramembranous ossification this happens peripheral to the fracture, where cartilage is formed through endochondral ossification
hard callous or fibrous tissue
Periosteum –where _________ _________ or __________ __________ is formed, formed through intramembranous ossification this happens peripheral to the fracture, where cartilage is formed through endochondral ossification
hard callous or fibrous tissue
________ _______ tissue –the tissue around the bone near the break where a bridging callous forms and it provides ____________ to the fractured bones
External soft
stability
There are ____ stages of healing are there in bone healing.
six
Stage 1: ______________ Formation
Stage 2: Hematoma to ___________ Tissue
Stage 3: _______ Formation
Stage 4: ___________ Proliferation
Stage 5: Bone _____________
Stage 6: Bone __________ Completed
Stage 1: Hematoma Formation
Stage 2: Hematoma to Granulation Tissue
Stage 3: Callus Formation
Stage 4: Osteoblastic Proliferation
Stage 5: Bone Remodeling
Stage 6: Bone Healing Completed
__________ ___ _____________ ______________–painful, forms within 72 hours, bleeding cuz bones vascular, vasoconstriction occurs, cytokines are released and they trigger angiogenesis which is the growth of new blood vessels,
Stage 1: Hematoma Formation
Stage __: Hematoma to __________ Tissue -__ _____ to ___ _____after the injury, granulation tissue invades the hematoma and starts forming fibrocartilage which is like the building block
Stage 2: Hematoma to Granulation Tissue
2 days to 2 weeks
________ __ __________ ____________due to vascular and cellular proliferation, fracture site will be surrounded by new vascular tissue called a _____
Stage 3: Callus Formation
callus
__________ ____ _________________ ________________ callous reabsorbed and transformed into bone, in __ __ ___ ______
Stage 4: Osteoblastic Proliferation
3 to 8 weeks