essential question: how do major organ systems work...
TRANSCRIPT
EssentialQuestion:Howdomajororgansystems
worktogetherinlivingorganisms?Standards:S7L2d.Explainthattissues,organs,andorgansystemsservetheneedscellshaveforoxygen,food,andwasteremoval.
S7L2e.Explainthepurposeofthemajororgansystemsinthehumanbody(i.e.,digestion,respiration,reproduction,circulation,excretion,movement,controlandcoordination,andforprotectionfromdisease).
Watchthevideoclipbelowandidentifywhichsystemofthebody
hasasimilarfunction.
http://www.youtube.com/watch?v=8erOa6W67IM[watch1min30seconds]
DigestiveSystem
RoleoftheDigestiveSystemSeriesoforgansthat
convertfoodintoessentialnutrients,andmovesunwantedwasteout
Howdoesitdoit?
Chewing• MechanicalDigestion–Breakingdownfoodintosmallerpieces• Teethareusedtobreakfoodintosmallerpieces
EsophagusPipeconnectingthemouthtothestomach(involuntarymuscles)
StomachFoodischemicallybrokendownbyacidtoformpastecalledChyme
ChemicalDigestion
Foodisconverted(changed)into
substancesthatcanbeabsorbedbythebody
SmallIntestineWherethenutrients(glucose,protein,etc.)areabsorbedintothebloodstream
LargeIntestine• Pullsoutwaterfromleftovers• Lastportioncalledrectum• Anusistheopeningattheend
FinishtheStoryBecauseMrs.Fizzle’sclassdoesn’twanttoexit
Arnold“thebackway”,theydecidetogobackthewaytheycame.Writeabriefexplanationoftheroutetheywilltakeandwhattheywillseeandexperienceastheygobackthewaytheycame.
TheUrinarySystem
Role:Oururinarysystemproduces,storesandeliminatesurine,thefluid
wasteexcretedbythekidneys
Whatdoesexcretedmean?
TheUrinarySystem
Synonyms:Eject,Remove,Expel,Pass
PartsoftheUrinarySystem
KidneyUreters
Bladder
Urethra
KidneysActasfiltersforyourbodytocleanwastefromthebloodandremoveurea[awasteproduct
formedbythebreakdownofproteins]
UretersA setoftubesconnectingthekidneystothe
bladder
BladderA hollowmuscularorganshapedlikeaballoon,thatstoresurineuntilyouarereadytoemptyit.Thebladdercanholdupto16ounces(almosthalf
aliter)ofurinecomfortablyfor2to5hours.
UrethraAtubethatconnectsthebladdertotheoutsideofthebody
UrinarySystemVideoClip
http://bcove.me/0n6bc6vq[onlyfirst3-4mins]
ExcretorySystemTheroleoftheExcretory
Systemistoremovewastesfromthebody.
OrgansthatExcreteWaste
Organ WhatitExcretesLungs CarbonDioxide
Kidney/Bladder Urine
LargeIntestine Feces (foodwaste)
Skin Excesswater/Salt
Skin• OurBodysweatstomaintaintemperature• Youmayhavenoticedyousweatmoreinplaceslikeyourfeet,yourhandsoryourforehead• Thisisbecauseyouhavemoresweatglandsinthoseareas
WriteitDownOnascratchsheetofpaperwriteabriefstatementexplaininghowthistrashtruckissimilartotheorgansinyour
excretorysystemandhowitisdifferent.