What Are
They Made Of?
How Many
and How Big?
What's My Purpose?
Joints on the Move!
Other Facts
100
The body is almost 70% water, but bones are almost dry with only this amount of water.
What is 20% water?
100
You start out with 300 but in 20 years you end up with this many as an adult.
What is 206 bones?
100
These bones provide protection to the brain, spinal cord, and vital organs such as heart, lungs, and liver.
What are the cranium, vertebrae, and rib cage?
100
This joint moves like a hinge. Examples are your elbow and knee.
What is a hinge joint?
100
Babies are bone with straight ones, but as we learn to walk it begins to curve.
What is the vertebrae?
200
These are the minerals bones are made of.
What is calcium, magnesium, and phosphates.
200
This bone located in the leg is the longest and strongest one in our body.
What is the femur?
200
This is the name of the combination of bones and muscles which helps us move.
What is the musculoskeletal system?
200
A ball shaped end of a bone fits in a cup shaped end of a bone.
What is a ball and socket joint?
200
There are five kinds of bones and this one is named for the sesame seed because it is round such as the patela which protects the knee joint.
What is sesamoid?
300
The very important jelly like inside of the bone.
What is bone marrow?
300
These bones located in our ears are the tiniest in our body.
What are the ossicles?
300
The bone marrow produces these three things.
What is red and white blood cells and platelets.
300
The bones slide against each other such as the wrist and ankle joint.
What is a gliding joint?
300
This scientist studies fossil remains of plants and animals from prehistoric times.
What is paleontologist?
400
The very spongy honeycombed inside of the bone which makes it strong and light.
What is cancellous bone?
400
The lower part of the arm and leg contain two bones. Which ones are the larger of the two?
What is the radius and tibia?
400
The bone marrow produces this which helps fight off infection.
What is white blood cells?
400
Much like a jigsaw puzzle, this joint fits bones together, and they are immovable.
What is a suture joint?
400
The most famous hominid (human-like) skeleton was found in Africa and dates back to 3.2 million years ago.
Who is Lucy?
500
This part of the bone is laced with blood vessels and nerves that let you know you are hurt.
What is the periosteum?
500
Bones start as this but change as we grow.
What is cartilage?
500
Bone marrow produces this so when you bleed this helps create clots to stop the bleeding.
What are platelets?
500
This joint is at the base of the thumb.
What is the saddle joint?
500
This bone is the only one not connected to another bone.
What is the hyoid?
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