Bone Anatomy Flashcards
Longer with shaft and 2 ends
Most bones in limb
Long bones
Cube shaped
In wrist and ankle
Sesamoid bones- form within a tendon
Short bones
Thin, flat, somewhat curved
Most cranial bones of skull, ribs, sternum, scapula
Flat bones
Various shapes
Vertebrae and hip
Irregular bones
Dense outer layer
Compact bone
Internal to compact
Open spaces are filled with yellow bone marrow
Spongy bone (trabecular)
Forms long axis of long bone
Diaphysis
Ends of long bones each has 2
Epiphyses
Between diaphysis and epiphysis
Epiphyseal line
Main vessel in wall of diaphysis
Nutrient artery + nutrient vein
Nutrient foramen
Very center of diaphysis of long bones have no bone tissue
Filled with yellow bone marrow
Medullary cavity
Covers entire outer surface of each bone except on ends of epiphysis
Serves as an insertion point for tendons and ligaments
Periosteum
No diaphysis or epiphysis contains bone marrow
Periosteum covered with compact bone externally and endosteum covered with spongy internally
Irregular and flat bones structures
Compact bone structures
Cylindrical structure parallel to long axis of bone
Multiple layers of bone lamellae surrounding a central canal
Osteon (Haversian system)
Within osteon each of rings
Layer of bone matrix
Lamella
