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Structure and Function
The Body
Skeleton
Skeleton is made of
bones
Bones are held together by
ligaments
Skeleton
SupportsProtectsAttachment for musclesAllows movementMakes blood cells Stores minerals
Ligaments
HOLD BONES TOGETHER
CARTILAGE
COVERS ENDS OF BONES
STOPS THEM RUBBING TOGETHER
LUBRICATES
TENDONS
ATTACH
MUSCLE
TO BONE
TENDONS
ATTACH MUSCLES
ACROSS
JOINTS
MUSCLE
CAUSES MOVEMENT
CAN ONLY PULL
WORK IN PAIRS OR SETS
CAN BE VOLUNTARY OR
INVOLUNTARY
MUSCLES
TWO TYPES
SLOW TWITCH
FAST TWITCH
MUSCLES
SLOW TWITCH OR RED MUSCLE
FULL OF CAPILLIARIES AND BLOOD
RICH IN OXYGEN AND CAN KEEP THE BODY WORKING FOR A LONG TIME
LITTLE FORCE DOES NOT TIRE EASILY
MUSCLES
FAST TWITCH OR WHITE MUSCLE
LESS RICH IN OXYGEN
VERY POWERFUL
TIRES EASILY
MUSCLES
EACH PERSON IS MADE UP OF
DIFFERENT MUSCLE FAST AND SLOW
SPRINTERS LOT OF FAST/WHITE
MARATHON LOT OF SLOW/RED
MUSCLES
POWER CELL OFMUSCLE IS CALLED
MITOCHONDRIA
CONVERT FOOD INTO ENERGY
JOINTS
WHERE TWO BONES JOIN TOGETHER
JOINTS ALLOW MOVEMENT
SYNOVIAL JOINTS
WHOLE JOINT HELD IN SAC
SURFACES OF BONES COVERED IN CARTILAGE
SAC FILLED WITH SYNOVIAL FLUID
JOINTS
BALL AND SOCKETCONDYLOIDSADDLEHINGEPIVOTGLIDING
BALL AND SOCKET
SHOULDERAND HIP
MOVEMENT IN ALL
DIRECTIONS
HINGE JOINTS
ELBOW AND KNEE
MOVEMENT IN TWO
DIRECTIONS
JOINTS
CONDYLOID
WRIST BONES AN ODD SHAPE
SADDLE
THUMB
PIVOT
ELBOW RADIUS AND ULNA AREAS