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Functions of the skeletal system: |
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Definition
Storage of minerals Support Blood Cell Production Leverage |
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Term
What is a Foramen (skull surface feature)? |
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Definition
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Definition
a characteristic of a bone's surface that has a certain function, such as forming a joint, or allowing the passage of nerves and blood vessels. |
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Term
Compare a tubercle to a tuberosity. |
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Definition
A tubercle is a small, rounded projection on a bone, whereas a tuberosity is a small, rough projection that may occupy a broad area on the bone's surface. |
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What are the major parts of a long bone? |
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Definition
the epiphysis, diaphysis, metaphysis, and medullary cavity. |
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Term
What is the function of the medullary cavity? |
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Definition
The medullary cavity is the space within a bone. It contains the red bone marrow, and the yellow bone marrow, adipose tissue. |
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Term
If the articular cartliage is avascular, how is it nourished? |
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Definition
by diffusion from the synovial fluid within the joint. |
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Term
If osteclast activity exceeds osteblasts activity in a bone, what is the effect on the bone? |
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Definition
The bone's mineral content would decline, making it weaker. |
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Definition
is the basic functional unit of mature compact bone, it consists of ostecytes organized around a central canal and is separated by concentric lamellae. |
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Definition
is the enlargement of a bone by the addition of bone matrix at its surface. |
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Term
Endochondral ossification |
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Definition
is the replacement of a cartilaginous model to bone. |
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Term
Intramembranous ossification |
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Definition
is the formation of bone within connective tissue without the prior development of a cartilaginous model. |
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Definition
is a hereditary disorder of connective tissue, resulting in abnormally long and thin limbs and digits. |
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Term
How are gigantism and acromegaly different? |
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Definition
Gigantism results from overproduction of growth hormone before puberty. Acromegaly results from overproduction after puberty. |
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Term
How does calcitonin lower the calcium ion concentration of blood? |
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Definition
Calcitonin lowers blood calcium levels by inhibiting osteoclast activity and increasing the rate of calcium excretion at the kidneys. |
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Term
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Definition
also called a compound fracture is a break in the bone in which bone pierces the skin. |
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