Skeletal System Flashcards
What are the function of the bones?
Support, protection, allow movement, storage, blood cell formation
Supports the body and cradles its organs it is also called a steer girdles for reinforced concrete
Support
Protect soft organ
Protection
Protect soft organ
Protection
Use the bones as levers to move the body and its parts
Allow movement
Serves a storehouse
Storage
Occurs within the marrow activities of certain bones
Blood cell information
How many skeleton is composed on adults
206
What are the two basic types of osseous
Compact bone and spongy bone
Bones are classified into four groups
Long, short, flat, irregular
Longer and wide mostly compact bone
Long bones
Thin and flatten two thin layer of compact bone sandwhiching spongy bone
Flat bone
Cube shape and contain mostly spongy bone
Short bone
Fairly complex shape not fit in proceeding categories
Irregular bone
What forms in the tendon specially in short bone?
Sesamoid bone
Give one example of irregular bone
Spinal column
Makes up most bone length
Diaphysis or shaft
Covered and protected by a fibrous connective tissue
Diaphysis
Covers bone by fibrous connective tissue
Periosteum
Hundreds of connective tissue fibers also known as
Perforating Fibers or sharpey’s fiber
Secure the periosteum 2d underlying bone
Sharpey’s fibers
End of long bone
Epiphyses
Consists of thin layer of compact bone
Epiphyses
Thin line of bony tissue, remant of epiphyseal plate
Epihyseal line
Flat plate of hyaline cartilage
Epiphyseal plate
Inner bony surface of the shop is covered by a delicate connective tissue
Endosteum
Storage area for red marrow which produces blood cells
Medullary cavity
composed of small needlelike pieces of bone
Trabeculae
mature bone cells
Osteocytes
found within the bone matri
Lucunae
arranged in concentric circles
Lamallae
Lamallae us also called what?
Haversian system
