The Skeletal System Flashcards
What are the functions of the skeletal system?
Support, mineral storage, protection, hemopoiesis, movement, and stem cells
What’s red bone marrow?
Contains blood stem cells that can become red blood cells, white blood cells, or platelets
What is periosteum?
The membrane of blood vessels and nerves that wraps around most of your bones
What is Yellow bone marrow?
Made mostly of fat and contains stem cells that can become cartilage, fat, or bone cell
What is compact bone?
The denser, stronger of the two types of bone tissue
What can bones be filled with?
Arteries, veins and nutrient foramen’s
What is an osteocyte?
Mature cells that maintain bone tissue
What are osteoblasts? what do they produce?
They are immature active cells, found on inner and outer surfaces of bone. They produce osteoid.
What does the process of Osteogenesis do?
Process of making new bone
What are Osteoprogenitor cells?
They are cells that are on all surfaces of bone, and the have the ability to divide and differentiate into osteoblasts
What are Osteoclasts?
They are multinucleanated cells that preform osteolysis
When and why would you ever want to dissolve a bone matrix?
What are some functional differences between compact and spongy bone?
- Epiphyses (ends)
- Diaphysis (shaft)
- Metaphysis (Connection api and dia)
What is the Periosteum?
The membrane of blood vessels and nerves that wraps around most of your bones, contains collagen, outer fibrous and inner cellular layers.
What is the Endosteum?
Incomplete cellular layer containing; osteoblasts, osteoprogenitor cells, and osteoclasts
