Ch 19: Skeletal System

which is avascular, cartilage or bone

cartilage

what do ligaments connect

bone to bone

what do tendons connect

muscle to bone

where is energy stored in the bone

adipose cells in marrow

what is the appearance of immature bone

woven bone and weak

what is the appearance of mature bone

spongy and compact

is bone a living tissue

yes

what is the process in which bone is contantly being turned over called

bone remodelling

what is part of the axial skeleton

• skull

• rib cage

• vertebral column

what are sutures

immovable joints

fibrous joint

no movement

synovial joint

a lot of movement

cartilaginous joint

some movement

origin of muscle

point of attachment (muscle to stationary bone)

insertion of muscle

muscle to bone that moves

osteoblasts

• build bones

• secrete collagen and organic compounds

osteocytes

exchange nutrients with materials in the blood

osteoclasts

destroy bone matrix to release mineral back into blood

• have multiple nuclei

spongy bone

also known as cancellous or trabecular

epiphyseal plate

source of bone growth

how is most calcium sotred in the body

hydroxyapatite (type of calcium phosphate)

what is endochondral ossification

in where cartilage is replaced into bone

intramembranous ossification

undifferentiated connective tissue into bone

The periosteum is ___________.

vascularized