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Page 1: Skeletal System - Michigan › documents › explorelab...Skeletal System The skeletal system is the internal framework of the body made up of our bones. The human skeleton is responsible

Sources:https://en.wikipedia.org/wiki/Human_skeleton

SkeletalSystemTheskeletalsystemistheinternalframeworkofthebodymadeupofourbones.

Thehumanskeletonisresponsible

forsupport,movement,andprotectionofthehumanbody,aswellasproductionofbloodcells,storageofminerals,andendocrineregulation.

Theskeletalsystemsupportallowsus tomaintainourshape.Withoutthe ribcage,ourlungswouldcollapse.

Movementoftheskeletonis dependentuponjoints(wheretwo bonesmeet).Movementispowered byskeletalmusclewhichconnectto varioussitesonthebones.

Theskeletalsystemisalsovery importantintheprotectionofthe majororgans,suchastheskull protectsourbrainandthevertebrae protectsourspinalcord.

Thedevelopmentofbloodcellsalso occursintheskeletalsystem.It primarilyoccursinthebonemarrow oflongbonessuchasthefemurand thetibia.

FUNFACT:Whenababyisborntheyhavearound300bonesintheirbody.Astheyagesomeoftheirbonesfusetogetherandafullgrownadulthasonlyabout206bones.

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