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Medical Bones
bones of body
Question | Answer |
---|---|
Number of bones in body | Adult: 206Children: 350 |
Axial Skeleton | Skull, Spinal column, Ribs and sternum, and hyoid bone |
Appendicular Skeleton | extremities, pelvic and shoulder girdles |
Functions of skeletal system | frameworkprotectionProduction of blood cellsStorageLevers |
hematopoiesis or hemopoiesis | production of blood cells |
Diaphysis | long shaft |
Epiphysis | ends of bones |
Skull | Cranial and facial bones |
Cranial bones | 8 bonesFrontal2 Parietal2 TemporalOccipitalEthmoidSphenoid |
Facial bones | 14 bonesMandible2 Maxilla2 Zygomatic2 lacrimal5 nasal2 palatine |
Sutures | areas where the cranial bones have joined together |
sinuses | air spaces in the bones of skull that act as resonating chambers for the voice |
foramina | openings in the bones that allow nerves and blood vessels to enter or leave the bone |
fontanels | soft spots |
Vertebrae | 26 bones |
Vertebrae functions | protec spinal cordProvide support |
Sections of vertebrae | 7 cervical12 thoracic5 lumbarsacrum coccyx |
intervertebral disks | pads of cartilage tissueseparate the vertebrae shock absorbersallow bending and twisting |
Ribs aka Costae | 12 pairs |
True ribs | first 7 pairs |
False ribs | next 5 pairs |
Floating ribs | last 2 pairs |
sternum | breastbone |
humerus | upper arm |
radius | lower arm thumb |
ulna | lower arm pinky |
carpels | wrist 8 |
metacarpals | palm 5 |
phalanges | fingers 14 |
femur | thigh |
patella | knee cap |
tibia | lower leg |
fibula | lower leg |
tarsals | ankle 7 |
calcaneous | heel |
metatarsals | arch 5 |
phalanges | toes 14 |
3 types of joints | Diathrosis: freely movableAmphiarthrosis: slightly movableSynarthrosis: immovable |