Bones And Joints Flashcards
Protein that makes up 32% of bones
Collagen
5 functions of bones
1 Attachments for muscles 2 give shape 3 protect structures 4 store minerals 5 produce blood
Make collogen
Osteoblasts
Bone cells makes up 2% of bone structure
Osteocytes
Makes bones hard and dense 66% of bone structure
Calcium phosphate
Circular rings that contain osteocytes
Lamellae
Compartments that contain osteocytes
Lacunae
Outer protection covering of bones that are an attachment point for muscles
Periosteum
Blood vessels and nerves run through this
Haversian canals
Found in the ends of bones- losely packed
Spongy bone
Very compacted- not many holes- found in shaft
Compact bone
Make RBC’s players and WBC’s/found in spongy bone
Red marrow
Makes fat/ found in centers of long bones
Yellow marrow
Ends of bones
Epiphysis
Shaft of bones
Diaphysis
Center opening of bones
Medullary cavity
Anything our body pivots on
Axial
Extremity on our body
Appendicular
Most of bones in human body
Endochondral bones
Tough cartilage
Hyaline cartilage
Harden
Ossification
Growth plate
Epiphyseal disk
4 factors affecting bone growth
Sunlight
Nutrition
Hormone secretion
Physical exercise
In position- does not break the skin
Simple fracture (closed)
Out of position- breaks through skin
Compound fracture (open)
5 repair steps of fractures
1 Hematoma forms 2 osteoblasts form 3 spongy bone forms 4 spongy bone ossifies 5 compact bone forms
Point where 2 bones meet
Joint
Immovable joints ex) skull
Synarthrotic