Bone Stuff 🩻🦴 Flashcards
Types of bone classification
Long
Short
Flat
Irregular
Four main bones cells
Osteoprogenitor cells
Osteoblasts
Osteocytes
Osteoclasts
Osteoprogenitor cells
Stem cells that mature and become osteoblasts
Osteoblasts
Immature bone cells that secrete osteoid (organic component of bone matrix)
Osteocytes
Mature bone cell that maintains bone matrix
Osteoclasts
Secretes enzymes and recognizes stress —> breaks down bone matrix
Endochondral ossification
Begins with a hyaline cartilage model and produces the bones of the upper and lower limbs, pelvis and vertebrae
Intramembranous ossification
Bone growth within a membrane during embryological development
Produces the flat bones within the skull, some facial bones, the mandible, the central part of the clavicle, and fontanelles.
8 cranial bones
Frontal bone
Parietal bones
Temporal bone
Occipital bone
Sphenoid bone
Ethmoid bone
14 facial bones
Zygomatic bones
Lacrimal bones
Nasal bones
Vomer
Inferior nasal conchae
Palatine bones
Maxillae
Mandible
Axial skeleton components
Skull
Vertebral column
Thoracic cage
SUPPORT AND PROTECT THE ORGANS IN BODY CAVITIES AND ATTACH THE MUSCLES OF THE HEAD, NECK, TRUNK, AND MUSCLES FOR RESPIRATION
Appendicular skeleton components
Pectoral girdle, upper and lower limbs, and pelvic girdle
ATTACH THE LIMBS TO THE AXIAL SKELETON AND FUNCTIONS THE UPPER AND LOWER LIMBS OF THE BODY