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Function of the bones

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27 Terms

1

Function of the bones

Support the body, Protect soft organs, Allow movement due to attached skeletal muscles, stores minerals and fats, blood cells formation (hematopoiesis)

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2

Parts of the skeletal system

Bones (skeleton), joints, cartilages, ligaments

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3

Subdivisinos of the skeleton

axial, appendicular

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4

How does the skeleton protect soft organs

Skull and vertebrae protects brain and spinal cord, rib cage protects thoracic cavity organs

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5

What minerals and fats does skeletal system store

Calcium and phosphorus, fat in the internal marrow cavity

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6

how many bones does the adult skeleton have

206

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7

Two basic types of bone tissue

Spongy and compact bone

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8

SPongy bone

Small needle like pieces of bone, many open spaces

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9

Compact bone

Homogenous

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10

Bones are classified as

Long, short, flat, irregular

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11

Long bones

longer more than wide, shaft with heads at both ends, mostly compact bone, all bones of the limbs

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12

Short bones

Cube shaped, spongy bone, bones of the writst and ankle,

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13

Sesamoid bones

short bones which form within tendons (patella/kneecap)

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14

Example of short bones

Carpals, Tarsals

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15

Example of long bones

Femur, humerus

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16

Flat bones

Thin, flattened usually curved, two thin layers of compact surround a layer of spongy

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17

example of flat bones

skull, ribs, sternum

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18

Irregular Bones

Irregular shape

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19

Examples of irregular Bones

Vertebrae, hip bones

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20

Diaphysis

long bone, shaft, composed of compact bone

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21

Ephysis

Long bone, end of bone, composed of mostly spongy bone

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22

Periosteum

Long bone, Outside covering of the diaphysis, fibrous connective tissue membrane,

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23

Perforating (sharpeys) fibers

secure periosteum to underlying bone, long bone

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24

Arteries

Long bone, supply bone cells with nutrients

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25

Articular cartilage

long bone, covers the external surface of epiphysis, made of hyaline cartilage, decreases friction at joint surfaces

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26

Epiphyseal Plate

Flat plate of hyaline cartilage seen in young, growing bone, long bone

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27

Epiphyseal Line

Remnant of plate, seen in adult bones, long bone

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