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Related Flashcards
Cards In This Set
| Front | Back |
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Which of following is a function of the skeletal system?
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blood cell production
calcium homeostasis body support protection of internal organs All of the answers are correct. |
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When a fractured bone heals it leaves a thickened region known as a ____________.
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fracture hematoma
callus
bone scab
tuberosity
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This cell (osteoclast) functions to _________.
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lay down matrix fibers
build bone
maintain bone
break down bone
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Spongy bone is filled with ____________.
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compact bone
red marrow
the osteons
fatty marrow
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A vertebra is an example of a(n) __________ bone.
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dense
flat
irregular
short
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In relationship to the diaphysis of a long bone, the osteons are
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diagonal.
radial.
anterior.
proximal.
parallel.
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A drop in blood calcium levels stimulates the secretion of __________.
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parathyroid hormone
growth hormone
calcitonin
thyroid hormone
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A bone scan of an older patient revealed the beginnings of osteoporosis. Which of these interventions is notrecommended?
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bed rest
vitamin D supplements
calcium supplements
vitamin C supplements
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Migration of osteoblasts into the ___________ creates the __________.
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epiphysis, secondary ossification center
diaphysis, secondary ossification center
epiphysis, primary ossification center
diaphysis, tertiary ossification center
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Where in the body does the production of precursors for the synthesis of calcitriol occur?
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small intestine
kidneys
bone
skin
liver
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Which of these forms by intramembranous bone formation?
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mandible
carpal bones
humerus
long bones
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Which of these is a primary role of the skeletal system?
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leverage
calcium homeostasis
muscle attachment site
All of these are primary roles of the skeletal system.
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Which of the following are not components of the skeletal system?
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tendons
bones
cartilage
ligaments
other tissues that connect bones
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Which of the following characteristics applies to the cells known as osteoclasts?
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They are stem cells.
They are mature bone cells.
The cells dissolve matrix.
The cells secrete matrix.
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Osteoblasts differentiate from __________.
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osteocytes
osteomedullary cells osteoclasts osteoprogenitor cells |
