Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Skeletal System

Chapter 4

TermDefinition
diaphysis shaft part of the long bone
medullary cavity hollow tube running down the middle of the diaphysis, filled with yellow marrow and is used for shock absorption
periosteum thin membrane covering the diaphysis where the tendons and ligaments attach
epiphyses ends of the long bones, made of spongey bone which is filled with red bone marrow
articular cartilage covering the epiphyses, a smooth surface that assist in joint function
metaphysis the growth plate, between the diaphysis and the epiphysis
bone matrix consist of: calcium phosphate 92/3 of the weight) and calcium hydroxide and collagen fibers
lamellae layer of bone matrix
osteocytes bone cells, live in a pocket called lacuna, maintain and monitor the protein and mineral content of the matrix and can assist in the repair of bone
osteoblasts "bone builder" produce bone matrix, process called osteogenesis
Osteoprogenitor cells stem cells which divide to maintain the population of osteoblasts--important in healing fractures
Osteoclasts "bone destroyers" descendants of monocytes (white blood cells) remove bone matrix by dissolving with acids and enzymes this reabsorption process is called OSTEOLYSIS
ossification bone formation
calcification depositing of calcium in body tissues
endochondral ossification formation of long bones
intramembranous ossification formation of flat bones (skull & mandible)
bone remodeling constant breaking down and re-making of bones to ensure strength and durability
Created by: michellerolfs