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4th Grade - FOSS - Human Body

Investigation 2 and 3
STUDY
PLAY
joint
the place where 2 bones meet most joints, as in the skull, are filled and do not move
articulated
jointed or joined in sections as in the human skeleton
opposable thumb
is posistioned opposite the other fingers
immobilized
to prevent something from moving
thumbs
are essential for performing everyday tasks easily
compensate
to do something another way
hinge joints
knees, elbows 2 end joints of fingers and toes like a gate large, flex close and extend open 2. a place where two bones meet, allowing movement in two direction
ball-and-socket joint
hips and shoulders- move 3 different ways up and down front and back and rotate
gliding joint
all other joints moves 2 directions doesn't rotate
corpenpate
do something in another way
tissue
any of a number of different kinds of materials that make up the body, such as muscle, tendon, and bone
muscle
tissue that can contract, producing movement
contract
to become smaller or shorter in length
tendon
ropelike tissue that connects muscle to bone
Three muscle types
1. Smooth.
2 Voluntary
3 Involuntary
Voluntary muscles
muscles that can be controlled consciously. They move when you think about what you want them to do. (arms and legs for walking or running)
Involuntary muscles
muscles that automatically do their jobs without you needing to think about it. These muscles run all the jobs inside the body, such as breathing and digesting. (the heart pumping)