Bone Organization And Long bones Flashcards
Types of bones (6 in total)
1) Flat bones
2) irregular bones
3) long bones
4) short bones
5) sesamoid bones
6) Sutural bones
Flat bones characteristics and purpose
Thin and flat
Protect underlying organs and the main site of erythropoiesis in healthy adults
Flat bones examples
Some skull bones, breastbone, scapula
Irregular bones characteristics
Unusual shapes that could have extensions/ projections or holes/depressions
Irregular bone example
Vertebra
Long bones characteristics
Longer than they are wide
Ends are site of erythropoiesis
Long bone example
Leg, arm bones, fingers, toes
Short bones characteristics and purpose
Cube-like
Provide gliding movement and absorb force
Short bones found in:
Wrist and ankles
Sesamoid bones characteristics
Small smooth bones that develop in a tendon as a result of muscle contraction and stress
Sesamoid bone example
Knee cap
Sutural bones
(Wormian bones)
Tiny pieces of bone
Form where two bones join together (along joint line)
Sutural bones location and amount
Location and amount vary from person to person
Usually found in skull
Long bone ends are called:
Epiphyses
Caps the epiphyses of long bones:
Articulate cartilage
