Bone/osseus Tissue test 1 Flashcards

0
Q

What lives in membrane around bone; does cell division on the bone surface ?

A

Osteoprogenerator

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1
Q

What is osseus tissue ?

A

Type of connective tissue

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2
Q

What is formed from 1 daughter cell when osteoprogenerator cells divide; secrete the matrix?

A

Osteoblasts

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3
Q

What is trapped in the bone matrix in lacuna (holes); job is to keep the bone healthy mature osteoblasts?

A

Osteocytes

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4
Q

What comes from the immune system; live in the bone membrane surface; job is to dissolve bone ?

A

Osteoclasts

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5
Q

What is bone matrix ?

A

Basically cartilage with mineral salts to harden it. Trucalcium phosphate (major mineral), calcium carbonate, magnesium hydroxide also sulfate and fluoride

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6
Q

What forms the surface of all bones and most of mass of long bones? Solid bone with little space, based around units called osteons.

A

Compact bone (dense bone)

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7
Q

What is an osteon ?

A

Cylinder made of concentric rings of bone; hollow at center

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8
Q

What is the term for canals in sides of bone link up to central canals contains blood vessels?

A

Perforating canals

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9
Q

What is the term for the arches of bone that fill at spaces between osteons ?

A

Interstitial lamella

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10
Q

What is the term for arches of bone tissue at bone surface; make the bone smooth?

A

Circumferential lamella

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11
Q

What is the term for the hole at center of osteon for blood vessels ?

A

Central canal

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12
Q

What is the term for circles of bone that form osteon ?

A

Concentric lamallae

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13
Q

What is lacuna ?

A

Holes where lamellae meet osteocytes live here

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14
Q

What is the term for cracks radiating from lacuna; contain projections from osteocytes?

A

Canaliculi

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15
Q

What is spongy bone ?

A

Interior of all bones. Most of the mass of non-long bones. Formed by arches of bone called trabeculae that come together to form a sponge like structure with holes and tubes with lots of internal space.

16
Q

What type of bone is longer than they are wide? ( most limb bones)

A

Long bones

17
Q

What type of bone is same height and length

Ex. Carpal bones; mostly spongy bone (squarish)

A

Short bones

18
Q

What is flat bone ?

A

Has a flat shape

Ex- skull bones, mostly spongy bone.

19
Q

What are odd shaped bones?

Ex- sphenoid, ethmoid, vertebrae, mostly spongy bone

A

Irregular bones

20
Q

What are sutural bones ?

A

Extra bones in the skull sutures (not everyone has these

21
Q

What are bones in the tendons and what is their job and and an example ?

A

Sesamoid bones
Job is to help relieve stress on that joint
Ex- patella

22
Q

What is the term for the shaft of a long bone ?

A

Diaphysis

23
Q

What is the term for the ends of a long bone; usually have articular cartilage to make joints?

A

Epiphysis

24
Q

What is articular cartilage ?

A

Cartilage on epiphysis for forming a joint

25
Q

What is metaphysis ?

A

Where diaphysis and epiphysis join. bones grow from here

26
Q

What is the term for membrane around the outer surface of all bones ; has two layers?

A

Periosteum

27
Q

What is the fibrous layer ?

A

Outer layer made of dense irregular connective tissue part of the periosteum

28
Q

What is the inner osteogenic layer ?

A

Made of areolar connective tissue and elastic fibers. Osteoprogerantor and osteoasts live here. Has capillaries. Part of periosteum

29
Q

What is the term for the hollow area inside of bone; bone marrow is here?

A

Medullary

30
Q

What is the term for membrane lining medullary?

A

Endosteum