Skeletal System Flashcards
(53 cards)
Name 5 jobs of the skeleton
- movement 2. shape and support 3. protection 4. stores minerals 5. produces blood cells
What is the framework of our body made of?
skeletal system
What are 3 things that make up the skeletal system?
bones, cartilage, ligaments
What do many bones make?
blood cells
In what part of the bone are blood cells made?
marrow
Bones store what 2 things that give the bones their strength?
calcium, phosphorous
Bones provide a place for WHAT to attach? This helps allow for movement…
muscles
What is a job that the bones to for our vital organs?
protect them
How many bones are there in the adult human skeleton?
206
Where is the smallest bone of the body?
ossicles in the ear (3)
What bones make up the axial skeleton
bones of skull, vertebrae, ribs, sternum, and pelvis
What bones make up the appendicular skeleton (the extremities)?
all of the other bones of the body
Living tissue is made of what?
cells
Name 2 things bones can do…
grow and repair
What are the bone cells that build up and repair bone tissue?
osteoblasts
What are the bone cells that breakdown bone tissue in order to release calcium into the bloodstream?
osteoclasts
What are the 3 tissues on the outside of most bones?
cushion, periosteum, ligaments
What is cartilage?
soft material that acts as a cusion where bones come together
What color is cartilage?
white
Where on the bone do you find cartilage?
on the ends of the bones
Why is cartilage softer than bone?
It has no blood vessels or minerals
What is an example of cartilage?
ear, nose
What is periosteum?
the thin outer covering of bone with many blood vessels that supply the bone with blood and nerves
What are ligaments?
tough fibers that help hold bones together
