Chapter 7- Bones and bone tissue Flashcards

1
Q

Bone functions

A
Shape
Support 
Protection
Movement
Electrolyte balance 
Blood production 
Acid base balance
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2
Q

Long bones

A

Longer than they are wide

Femur and humerus

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3
Q

Flat bones

A

Thin and flat
Protect organs
Skull ribs breast bones

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4
Q

Irregular bones

A

Various sizes and shapes
Sesamoid bones
Vertebrae and knee

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5
Q

Short bones

A

As broad as they are long

Carpals and tarsals

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6
Q

Ossification

A

The creation of a new bone

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8
Q

Articular cartilage

A

Then layer of Hyline cartilage covering the surface of the epiphysis

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10
Q

Intramembraneous ossification

A

Process in the fetus whereby fiberous connective tissue evolves into bone

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11
Q

Epiphyseal plate

A

Layer of cartilage separating Ephesus from the diaphysis at each end of a long bone

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12
Q

Endochondral officication

A

Process in the fetus when cartilagenius Skelton transforms into bone

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13
Q

Epiphysis

A

The head of each long bone

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15
Q

Medullary cavity

A

The central Hollow portion of a long term that contains bone marrow

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16
Q

Most childrens bins consist of what type of marrow

A

Red bone marrow

Adults have yellow

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17
Q

Diaphysis

A

The central shaft like portion of a long bone

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18
Q

Yellow bone marrow

A

Bone marrow that is rich in fat

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19
Q

Red bone marrow

A

Bone marrow charged with producing red blood cells

20
Q

Endosteum

A

The epithelial membrane line in the inside of the medullary cavity

21
Q

Osteoblast

A

Bone forming cell

21
Q

Periosteum

A

Dense fibrous membrane covering the diaphysis

22
Q

Osteoclast

A

Bone cells that dissolve old or unhealthy bone

23
Q

Tensile strength

A

The ability to resist stretching forces

Collagen fibers

24
Q

Osteocyte

A

Mature osteoblast

25
Q

Torsional strength

A

The ability to resist twisting forces

Characteristics the bones lack

26
Q

Compressional strength

A

The ability to resist squeezing forces

Calcium salts

27
Q

Trabeculae

A

Lattiace work of osseous tissue that makes up The structure of spongy or cancellous bone

28
Q

Spongy bone

A

Also called Calcanellous bone found in the end of long bones and in the middle of the most others

29
Q

Canailiculi

A

Microscopic passageways that connect to lamellae each other

29
Q

Haversian canal

A

Essential canal and compact bone containing blood vessels and nerves surrounded by Lamelli

29
Q

Osteon

A

Basic structural unit of compact bone consisting of haversion canals and surrounding Lamellae

30
Q

Lamellae

A

Concentric rings of matrix surrounding haversion canal in compact bone

31
Q

Volkmans canal

A

Transverse passageways found in compact found in compact bone

32
Q

Lacunae

A

Tiny gaps between rings of lamelle in compact bone

33
Q

Comminuted fracture

A

Bone breaks into pieces

33
Q

Compound fracture

A

Break in a bone in which the bone has penetrated the skin

33
Q

Green stick fracture

A

Incomplete break in a bone

33
Q

Simple fracture

A

Breaking a bone which the bone remains of wind and the surrounding tissue in tact

35
Q

Cancellous bone

A

Spongy bone found in the ends of long bones and in the middle of most bones

36
Q

Spiral fracture

A

Fracture where the line spirals around the bone result of a twist in force

37
Q

Compact bone

A

Dense solid bone that formed the shafts of long bones in the outer surfaces of other bones