Skeletal Flashcards
Long Bones
Longer in width
Have shafts at both ends
Compact bone
Short Bones
Cube shaped
Spongy bone
Flat Bones
Thin and flat
Spongy bone surrounded by compact bone
What is the shaft, composed of compact bones?
Diaphysis
What is the end of a long bone, composed of spongy bones?
Epiphysis
What is the outer coverage of the diaphysis?
Periosteum
What is the membrane coverage of the internal bone?
Endosteum
What cartilage is the coverage of the Epiphysis?
Articular Cartilage
What happens to ‘new cartilage’ within the Epiphyseal Plates?
It is continuously formed
What happens to ‘old cartilage’ within the Epiphyseal Plates?
It becomes ossified
Bone salts are
Calcium phosphate
Organic Matrix is
Collagen
Immovable joint =
Fibrous
Slightly moveable joint =
Cartilaginous
Movable joint =
Synovial
Cartilaginous Joint
Connected by cartilage
Lack a joint cavity
Slightly moveable
Fibrous Joint
United by fibrous tissue
No joint cavity
Immovable
Synovial Joint
Synovial fluid is found within the joint
Fluid lubricates the joint and nourishes the cartilage
Freely movable
Medullary Cartilage
Cavity of the shaft
Contains yellow marrow - fat
Contains red marrow - blood cell info
Osteon
A unit of bone
Central Canal
Opening in centre of Osteon
Carries blood vessels and nerves
Lamellae
Rings around the central canal
Canaliculi
Tiny canals
Radiate from central canal to lacunae
Forms transport system
