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PTA- Skeletal Syst

PTA Skeletal System from Lippert

Name 4 functions of the skeletal system support, movement, protection, mineral storage, production of blood cells, shape
What are the two types of skeletons in the human body? Axial and Appendicular
What human structures are HARDER than human bone? Dentin and enamel
Why is bone considered an organ? Because it is made up of several different types of tissue
Name three types of tissue contained in bone. Cartilaginous, osseous, nervous, and vascular
What proportion of bone is organic? One third
Where do we find compact bone? Mostly along shafts of long bones and plates of flat bones; it is thin at ends of long bones.
Where do we find cancellous bone? Found in the articular ends of bone.
How does compact bone differ from cancellous? It is harder and denser; cancellous is more porous and spongy and is located under tha harder core.
What is the loose, mesh structure of bone filled with? Marrow
Where is the epiphysis located? At each end of the diaphysis.
What is the significance of the epiphyseal plate? It is the growth center of young bone, where new bone cells are manufactured. It is vulnerable to injury, when subsequent growth can be affected.
Name two types of epiphyses. Pressure and traction.
What type of epiphysis grows bone from the stimulation of muscle contraction? Traction epiphysis
What is the function of the medullary canal? Arteries, which supply nutrients, pass through it.
What is the function of the endosteum? It is where bone resorption occurs.
The metaphysis is located between the diaphysis and the epiphysis. What kind of bone do we primarily find here? Cancellous bone is located here.
The periosteum covers bone. What part of bone does it NOT cover? The articular surface.
What category of bones are the humerus, tibia and femus examples of? Examples of long bones.
What category of bones are the sacrum and vertebrae examples of? Examples of irregular bones.
What category of bones are the scapula. patella and ilium examples of? Examples of flat bones.
What category of bones are the carpals and tarsals examples of? Examples of short bones.
Created by: ldesmarais