Anatomy Flashcards
What instruments measure the range of motion of joints?
Geniometers
What percentage of bone is water?
25%
What percentage of bone are calcium and phosphorus?
two thirds
What is the main mechanical component of bone?
Collagen and calcium salts
What percentage of bone is collagen?
one third
What is the inorganic material to organic material ratio of matter in the bone?
2:1
Three types of bone cells?
Osteocytes
Osteoblasts
Osteoclasts
How long does a full cycle of bone remodeling take?
3 months
What are osteocytes?
Basic bone cells
What are osteoblasts?
Associated with bone modelling
What are osteoclasts?
Bone-eroding cells
Other names for spongy bone?
Cancellous or trabecular
Characteristic of osteocytes in spongy bone?
They are close to the nutrient supply because the bony tissue is surrounded by blood vessels and associated material
Other words for compact bone?
Cotrical or dense bone
What are haversian cells?
Canals longitudinally arranged in shafts of long bones, carrying blood vessels, while being surrounded by bones (lamellae)
