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the skeletal system

206 named bones

Oste/o

combining form for bones

osteitis

inflammation of a bone

osteocyte

Bone Cell

Types of Bone

Compact- hard bone, Cancellous- softer, spongy type of bone

Red Marrow

responsible for nematopoiesis, the production of blood cells

Yellow marrow

consists primarily of fat cells and connective tissue

myel/o

combining form for bone marrow

Myeloblast

embryonic red bone marrow cell, mature into a myelocyte

myelocytes

mature into leukocytes

calcium

building blocks of bones, makes them hard and rigid

calc/i

combining form for calcium

osteogenesis

AKA ossification

formation of bone

usually formed from cartilage during embryonic development

ossa and os

mean bone and are often placed in front of other words in the naming of bones

osteotrophy

bone nutrition

troph/o

combining form for nutrition

-trophy

suffix meaning nutrition

periosteum

membrane surrounding a mature bone

x-rays

calcium in bone is radiopaque (block x-rays)

The axial skeleton

skull, vertebral column, breast bone, ribs, pelvis

Skull

consists of: cranial bones, facial bones

cranial bones

enclose and protect brain

crani/o

combining form for cranium or skull

sternum

breast bone

stern/o

combining form for sternum

sternal

pertains to the sternum

Ribs

12 pairs

cost/o

combining form for ribs

costaglia

rib pain

Spine

7 cervical vertebrae, sacrum, 12 thoracic vertebrae, 5 lumbar, coccyx (tailbone)

cervical

combining form for cervical

thoracic

combining form for thoracic

lumb/o

combining form for lumbar

sacr/o

combining form for sacrum

coccyg/o

combining form for coccyx

vertebr/o and spondyl/o

combining form for vertebrae

Spine

encloses and protects the spinal cord, supports the head

spine cont.

place of attachment for the ribs and muscles of the back

rach/i and rachi/o

combining form for the spine

rachiodynia

painful condition of the spine

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