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skelatal system 9th

9thgrade pathfinder

QuestionAnswer
a newborn baby skeleton is mostly crtilage
the spaces in tbone contain marrow
beneath the outter bone there is a layer of compactbone
bones are strong because they contain calcium and phosphorus
typers of joints hinge, ball and socket , pivot , gliding.
hinge joing ex. knee
ball and socket ex. shoulder
pivot joint ex. neck
gliding ex. wrist
the connective tissue that holds bone together ligement
skin reulates body temp. letting heat escape your body
to help prevent acne wash
livingcells inn the epidermis and found beneath the dead cells
the pigment melanin in the skin helps protect from the sun
the dermis contains nervs and blood cells
to help your body absorb calcium skin produces vitiman D
the kind of muscles that tire quickly skelital
what kind of tissue contracts muscle
pairs of muscle work together by contracting
involuntary muscles found in the digestive tract are smooth
type of musce found in the heart is cardiac
Created by: maxzo
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