Download The Skeletal System

The Skeletal System
S
Bone Classification
S Long bones: arms
S Short bones: wrists
S Flat bones: scapula
S Irregular bones: vertebrae
Identify
Bone
Shapes!
Long Bones: Parts
S Epiphysis: “knobby” ends of the long bones
S Articular cartilage: Outside portion of the
epiphysis which provides smooth glide for
joints
S Diaphysis: The narrow, length section of a long
bone
S Periosteum: outermost covering of fibrous
tissue on the bone
Long Bones: Parts Cont.
S Compact bone: section of the bone with no gaps
which makes up the wall of the diaphysis
S Spongy bone: section of the bone with thin layer
of bone with gaps which makes up the epiphysis
S Medullary cavity: hollow chamber in the middle
of the diaphysis
S Endosteum: lines the medullary cavity and houses
the bone-forming cells
S Marrow: connective tissue found in the gaps of
bones.
Intramembranous vs.
Endochondral
S Bones classified by the way they develop
S Most bones are endochondral
S Please look at page 198 in your book and
crate a Venn Diagram to highlight the
major differences between
intramembranous bone development and
endochondral bones