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Anatomy and Physiology, Sixth Edition

Rod R. Seeley

Idaho State University

Trent D. Stephens

Idaho State University

Philip Tate

Phoenix College

Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

*See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without notes.

Chapter 06

Lecture Outline*

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Chapter 6

Skeletal System:Bones and Bone Tissue

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Skeletal System Functions

Support

Protection

Moement Stora!e

Blood cell production

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6-"

#yaline Cartila!e

Consists o$ speciali%edcellsthat producematri&

Cells

Chondro'lasts Chondrocytes

Perichondrium(rticular cartila!e

)ro*th (ppositional

+nterstitial

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6-,

Bone Shapes

on! .pper and lo*er lim's

Short Carpals and tarsals

Flat /i's0 sternum0 skull0

scapulae

+rre!ular erte'rae0 $acial

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on! Bone Structure

iaphysis Sha$t

Compact 'one

piphysis nd o$ the 'one Cancellous 'one

piphyseal plate )ro*th plate

piphyseal line Bone stops !ro*in! in

len!th

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on! Bone Structure

Medullary caity /ed marro*

5ello* marro*

Periosteum

uter 'one sur$ace

Sharpey7s $i'ers

(ttachment

ndosteum ines 'one caities

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Flat0 Short0 +rre!ular Bones

Flat Bones 9o diaphyses0 epiphyses

Sand*ich o$ cancellous

'et*een compact 'one

Short and +rre!ular Bone Compact 'one that

surrounds cancellous

'one center

9o diaphysesand notelon!ated

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Bone #istolo!y

Bone matri& r!anic: Colla!en and proteo!lycans +nor!anic: #ydro&apatite

Bone cells

steo'lasts steocytes

steoclasts

Stem cells or osteochondral pro!enitor cells

;oen 'one: Colla!en $i'ers randomly oriented amellar 'one: Mature 'one in sheets

Cancellous 'one: Tra'eculae

Compact 'one: ense

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6-1or stora!e site$or calcium inthe 'ody

Calcium moes into 'one as osteo'lasts'uildne* 'one

Calcium moes out o$ 'one as osteoclasts 'reakdo*n'one

;hen osteoclastand osteo'lastactiity is'alanced0 the moement o$ calcium in and outis e=ual

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$$ects o$ (!in! on

Skeletal System

Bone Matri& decreases

Bone Mass decreases

+ncreased'one $ractures

Bone loss causes de$ormity0 loss o$ hei!ht0

pain0 sti$$ness

Stooped posture

oss o$ teeth

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Bone Fractures

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