How can we help?

You can also find more resources in our Help Center.

23 terms

Chapter 7 Bone Tissue

STUDY
PLAY
Osteology
study of bones
Ligaments
hold bones together at joints
Tendons
attach muscles to bones
Functions of skeleton
support, protection, movement, electrolyte balance, acid-base balance, blood formation
Mineralization or calcification
hardening process of bone
Flat bones
protect soft organs, curved but wide and thin
Long bones
longer than wide, rigid levers acted upon muscles
Short bones
Equal in length and width, glide across each other in multiple directions
Irregular bones
elaborates shapes that do no fit into other categories
Periosteum
external sheath that covers bone except where there is articular cartilage
Endosteum
thin layer of reticular connective tissue lining marrow cavity
Osteogenic (osteoprogenitor) cells
stem cells found in endosteum, periosteum, and in central canals
Osteoblasts
bone forming cells
Osteocytes
former osteoblasts that have become trapped in the matrix they have deposited
Lacunae
tiny cavities where osteocytes reside
Canaliculi
little channels that connect lacunae
Osteoclasts
bone-dissolving cells found on the bone surface
Ossification or osteogenesis
the formation of bone
In the human fetus and infant, bone develops by two methods
Intramembranous ossification
Endochondral ossification
Epiphyseal plate
region of transition from cartilage to bone
Metaphysis
the zone of transition facing the marrow cavity
Interstitial growth
bones increase in length
Appositional growth
bones increase in width throughout life