Chapter 7: Bone Tissue Flashcards
The study of bone
Osteology
The functions of the skeleton
Support Protection Movement Electrolyte balance Acid-base balance Blood formation
Connective tissue in which the matrix is hardened by the deposition of calcium phosphate and other minerals
Osseous tissue
The hardening process of osseous tissue
Calcification
Thin, curved plates; most of the cranial bones, the sternum, scapula, ribs, hip bones, etc.
Flat bones
The most important bones in body movement; the humerus, radium, ulna, femur, tibia, etc.
Long bones
Approximately equal in length and width, produce relatively limited gliding movements; contained in the wrist and ankles, the patella, etc.
Short bones
Bones that do not fit into the other categories: flat, long, or short; the vertebrae, three middle-ear bones, etc.
Irregular bones
Outer shell of dense white osseous tissue
Compact bone
The cavity that contains bone marrow
Medullary cavity or Marrow cavity
Loosely organized form of osseous tissue
Spongy bone
The shaft of long bone
Diaphysis
The expanded head of long bone
Epiphysis
The layer of hyaline cartilage where the joint surface of one bone meets the other
Articular cartilage
Minute holes where blood vessels penetrate into the bone
Nutrient foramina
The external sheath covering the bone
Periosteum
Some collagen fibers of the outer layer penetrate into the bone matrix as _________ .
Perforating fibers
A thin layer of reticular connective tissue that lines the internal marrow cavity, covers all the honeycombed surfaces of spongy bone, and lines the canal system of compact bone
Endosteum
Separates the marrow spaces of the epiphysis and diaphsysis in children and adolescents
Epiphyseal
The spongy layer in the cranium
Diploe
Stem cells that develop from embryonic mesenchymal cells and give rise to most other bone cell types
Osteogenic cells
Bone-forming cells
Osteoblasts
Former osteoblasts that have become trapped in the matrix they deposited
Osteocytes
Bone-dissolving cells on the bone surfaces
Osteoclasts