skeletal system Flashcards
SHAFT; COMPACT BONE
DIAPHYSIS
ENDS OF THE BONE; SPONGY BONE
EPIPHYSIS
COVERS THE DIAPHYSIS
CONNECTIVE TISSUE MEMBRANE
PERIOSTEUM
SECURE PERIOSTEUM TO UNDERLYING BONE
SHARPEY’S FIBERS
SUPPLY BONE CELLS WITH NUTRIENTS
ARTERIES
COVERS THE EXTERNAL SURFACE OF THE EPIPHYSIS
HYALINE CARTILAGE
DECREASE FRICTION AT JOIT SURFACES
ARTICULAR CARTILAGE
CAVITY OF THE SHAFT
MEDULLARY CAVITY
YELLOW MARROW (FATS)
ADULTS
RED BONE MARROW (BC)
INFANTS
FUNCTIONS OF THE BONES
- SUPPORT OF THE BODY
- PROTECTION OF SOFT ORGANS
- MOVEMENT DUE TO ATTACHED SKELETAL MUSCLES
- STORAGE OF MINERALS AND FATS
- BLOOD CELL FORMATION
UNIT OF BONE
OSTEON (HAVERSIAN SYSTEM)
OPENING IN THE CENTER OF AN OSTEON
CENTRAL (HAVERSIAN) CANAL
PERPINDICULAR TO THE CENTRAL CANAL
PERFORIATING (VOLKMAN’S) CANAL
CAVITIES CONTAINING BONE CELL; ARRANGED IN CONCENTRIC RINGS
LACUNAE
RINGS AROUND CENTRAL CANAL; SITES OF LACUNAE
LAMELLAE