Many statements with "fill-in-the-blank" type questions to answer
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Skeletal system protects | heart, lungs, brain
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| skeletal system's primary function | structure/support
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| skeletal system produces cells in the | marrow (red)
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| the blood cells in the skeletal system store and release | calcium
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| calcium is required for ____ and ____ function | muscle and nerve
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| Long bone shaft is called | diaphysis
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| The knobs on the end of long bone shaft | epiphysis
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| THe line where bone growth occurs | epiphyseal line
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| ossifies means | turns to bone
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| The holes in surface of bone for passage of blood vessels | foramen
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| This membrane surrounds the bone and attaches to muscles and tendons | periosteum
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| The synovial membranes surround the | joints
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| Endostium surrounds the | medullary canal
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| Medullary cavity contains | bone marrow
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| joint capsules are filld with | synovial fluid
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| concave pad of fibrous cartilage | meniscus
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| knee is padded by fluid filled bags called | bursa (sacs)
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| What binds bone to bone within a bone | Ligaments
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| Bone cells are not supplied with nutrients with capillaries, because... | It would make them very weak (too many holes in the bone)
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| Osteocytes live in little fluid pockets called... | lacunae
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| Blood vessels run through the bone matrix longitudinally in... | haversian canals
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| Bone matrix surrounds the haversian canals in layers or concentric circles called... | lamellae
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| Bone matrix is comprised primarily of _____ and ____ | Collagen fibers and calcium salts
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| A baked bone has no flexiblilty because... | The collagen has been eliminated
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| Bones are kept as ____ as they need to be, and as ____ as they can be. | Strong, light
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| When calcium salts are stressed, they produce a(n) _______, which attracts _____ | Electrical field, osteoblasts
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| Osteoblasts do...what? | Build up bone matrix
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| _____ a bone is necessary for it's maintenance and development | Stressing
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| Unstressed parts of bone are eaten away by _____ | Osteoclasts
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| Homeostasis also occurs in the blood supply of ____ | Calcium
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| The hormone that increases blood calcium levels is called ______. It increases absorption of Calcium from the intestines, decreases filtration of Calcium in the kidneys, and increases the activity of osteoclasts | Parathormone
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| The hormone that decreases blood Calcium levels is called ______ | Calcitonin
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| When a bone breaks, it produces a bloody swelling called a ____ | Fracture hematoma
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| The mass of cartilage and bone that forums internally after a fracture is called a(n)... | Internal callus
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| The abnormally swollen parts of the area around a fracture also turns into cartilage, and is called the... | External callus
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| Why do you WANT the osteoclasts to eat away the large chunk of strengthened bone formed after a fracture is healed? | Next time, it could break in the wrong place, and cause even more severe damage
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| Rheumatoid arthritis begins with damage to the ____ _____ | Articular cartilage
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| How does immobility (i.e. that caused by rheumatois arthritis) leads to further damage? | Loss of synovial fluid
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| Myositis ossificiations is "abnormal ______" | bone growth
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| "Heterotopic" means... | "In the wrong place" (i.e. bone spurs)
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| If you get enough _____, _____, and _____, you can continue to grow bone, up until about the age of _____ | calcium, vitamin D, physical stress, 22
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| Men lose about ___% of their bone per decade after the age of 40 | 3%
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| Woman lose about ___% of their bone density per decade after the age of 40 | 8%
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| Normal bone loss is called... | Osteopenia
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| More-the-normal bone loss is called... | Osteoperosis
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| Why is osteoperosis a problem with post-menopausal women? | Estrogen loss (estrogen stimulates osteoblasts)
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| One visible symptom is kyphosis, which is _____ of the thoracic vertebrae | compression
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| What is an allograft? | Bone transfer from cadaver to patient
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| What is the most bone-like substance, besides bone, found in nature? | Coral
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Created by:
BrandonDL
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