Question | Answer |
thin membrane that lines medullary cavity | endosteum |
example of a flat bone | scapulae |
shaft of the long bone | diaphysis |
example of a long bone | femur |
thin layre that cushions jolts and blows | articular cartilage |
example of a sesamoid bone | patella |
attachment for muscle fibers | periosteum |
example of a short bone | carpal |
end of a long bone | epiphysis |
example of an irregular bone | vertebra |
bone matrix consists of | inorganic salts, organic matrix, & collangeous fibers |
small spaces in bone cells | lacunae[little lakes] |
basic structural unit of compact bone | osteon |
cells that produce the organic matrix in bone are | osteoblasts |
red marrow in a bone doesn't include | (RPF) tarsals |
low blood calcium evokes in response from | parathyroid hormone |
________ marrow is found in almost all of the nones in an infants body | red |
primary ossification center is located at the | daphysis |
primary purpose of the epiphyseal plate | lengthening long bones |
epiphyseal plate is composed mostly of | chondrocytes |
bone loss begins to exceed bone gain between | 35-40 |
first ste to healing a bone fracture is | fractura hematoma formation |
most common type of skeletal tissue tumor | osteochondroma |
most common primary malignant tumor of skeletal tissue | osteosarcoma |
most common bone disease. Menopause. Porous, brittle & fragile bones | osteoporosis |
pagets disease aka | osteitis deformans |
bacterial infection of the bone and marrow tissue | osteomyelitis |
____ Types of bones. | 4 |
hollow area inside the diaphysis | meduallary cavity |
blood formation | endosteum |
four shapes are | long short flat irregular |
bones = | calcium |
needlelike threads of a spongy bone | trabecule |
dense bone tissue | compact |
ends of long bones | spongy |
outer covering of bone | periosteum |
fibers embedded in a firm gel | cartilage |
bone cells | osteocytes |
connect lacunae | canaliculi |
ring of bone | lamellae |
cartilage cells | chondrocytes |
structural unit of compact bone | haversian system |
functions of skeletal system | support protection movement hemopoesis mineral storage |
red blood cells are made in long bones. In adulthood, RBC are in | flat bones |
calcium most important to | nerve impulses |
prevent osteoporosis | more calcium, wight bearing excercise, hormone replacement |
bone growth stops at the end of | puberty |
immature bone cells | osteoblasts |
break down and reabsirb bine matrix | osteoclasts |
mature bone cells | osteocytes |
inTrAmembraneous bone growth occurs in | flat bones |
endochondraL | long bones |
bone breaks & pushes through skin | compound fracture |
fractured bone, what forms at the break? | callus |
two bones meet | articulation |
joints classification | fiberous, cartiliganous
& synovial |
immovable | synarthrotic |
slightly movable | amphiarthrotic |
freely movable | diarthrotic |
cranial | brain |
anterior | thoracic & abdominalpelvic |