Download Skeletal System

System
Major Organs and Structures
Skeletal System
Joints- where two bones
meet
Cartilage- protective
covering (like oil in a car;
kid with a helmet riding a
bike)
Examples of where can it be
found: between bones,
ears, nose, chest
(connecting ribs to
sternum)
Ligaments- connect bone to
bone (like a tight rubber
band)
Main Purpose
/Interaction with other
Systems
1. To provide support
for the body
2. To protect internal
organs
3. To provide
attachment sites for the
muscles
Muscular: Supports the
muscular system,
provides attachment
sites, and ultimately
allows for movement to
occur
Specific Functions
*Bone marrow
produces new blood
cells;
*bones are made of
mostly calcium and
phosphorous giving
them hardness
Side note: What type
of material is calcium
and phosphorus?
*some bones store
minerals
Random Facts
Babies (300) have
more bones than
adults (206)-Why?
Some bones fuse
together as the baby
grows and develops
further
Longest bone- femur
Smallest bone (stapesear bone)
Giraffes and humans
have the same
number of vertebrae
Nervous: The skull
protects the brain
A human hand has 27
bones
Cardiovascular: Hollow
bones are filled with
bone marrow. Red
bone marrow produces
blood cells for the
circulatory system.
A human face has 14
bones.