force that moves bones
Skeletal System and Muscular System
MUSCULAR SYSTEM
Types Of Muscel
Cardiac
does'nt tire quickly
found in heart
Smooth
React slow, does'nt tire easy
Found In internal organs
Skeletal
attached to bone by tendon
React and tire quickly
attached to skeleton
Muscel Control
Involuntary
Ex. Cardiac
Muscel you control
Voluntary
Ex. Running, turning a book
You dont have to think about it
How Muscels Work
Muscels release energy from breaking down gluose
one contracts, one relaxes
Injuries
Happens when muscels are over-worked
Tear
Muscel streches to far, pulled apart
Cramp
muscel contracts strongly
SKELETAL SYSTEM
Marrow
Yellow Marrow
Fat is stored
Red Marrow
Red blood cells made
Outer membrane
where blood vessels and nerves enter and leave bone
Compact Bone
many small canals, where blood vesels enter and leave
very hard, not solid
Boens are hard
They are made up of hard minerals-calcium and phosporus
Spongy Bone
Light wieght, strong, many spaces
5 major functions
protect organs
movement
for structure
to make blood cells
stores minerals
Tendon
Connects muscle to bone
Joints
print tommorow before school/ monday before school
Ball socket joint
shoulders
hips
gliding joint
ankle
wrist
Imovable joint
skull
Pivot joint
neck
Hinge joint
knee
elbow
Ligaments
Connect muscle to bone
Axial Skeleton
skull,ribs and vertebrae
Appendicular skeleton
upper and lower extermities, shoulder and hip bones
