anatomy Flashcards
functions of human skeleton
support
protection
locomotion
mineral reserve
what is the role of an osteoblast
lays down new bone during remodelling
what is the role of an osteoclast
breakdown old bone during remodelling
what is the cause of rickets
a deficiency of vitamin D
what is osteogenesis imperfecta
it is a congenital disorder that causes brittle bones
what are the features of a diaphysis
strong with some flexibility
mostly compact bone
what are the features of an epiphyses
articular surfaces for joints
mostly spongy bone but compact on surface
what is the space in the bone where bone marrow is found
medullary cavity
what are the features of periosteum
covers the outer surface of bone
site of attachment for tendons
what is the feature of endosteum
lines the internal surfaces of cavities within bone
name the 5 shapes of bone
- long bones
- short bones
- flat bones
- irregular bones
- sesamoid bones
what is the function of a long bone
involved in movement
what is the function of a short bone
involved in movement
what is the function of flat bone
protective function
sesamoid bones function
help protect tendon and increase range of movement