Typically thinner than others and usually curved
flat bones
site of blood cell and platelet formation
red marrow
Functions of the skeletal system
support, protection, movement, mineral storage, blood-cell storage
Classification on bones
sesamoid, flat, irregular, short, long
red blood cells
allows rotation around a point
pivot joint
bones of the arm
humerus, ulna, radius
union of bone or cartilage
joint
Daily Double
protein that makes up bone composition
collagen
cube-like in structure
short bone
identify foreign and potentially infectious cells in the body
white blood cells
fibrous joint
fused
cylindrical in shape
long bone
consists of bones, teeth, joints, and structures that connect bones to other bones or muscles
skeletal system
transforming cartilage into bone
endochondral ossification
ossification
variety of shapes and sizes
irregular bone
consists mostly of fat and serves as an energy reserve
yellow marrow
freely moveable joints in which bones are held together by ligaments
synovial joint
ball and socket, hinge, pivot
mandible, maxilla
a firm but pliable tissue found at the end of long bones and between vertebrae
cartilage
The organic component of bones and gives it its high tensile strength
osteiod
bones of the leg
femur, tibia, fibia
deposition of calcium salts that harden
calcification
slight movement in which bones are connected with cartilage
cartilaginous joint
the knee cap is the only "true" bone of this type in the body
sesamoid
Daily Double
shank of a long bone
diaphysis
secreted when blood calcium levels are low
PTH
parathyroid hormone
skull, pelvis
lubricates the joint and permits movement without friction
synovial fluid
fibrous, cartilaginous, synovial