What is the function of compact and spongy bone?
Spongy bone is used for more active functions of the bones, including blood cell production and ion exchange. However, compact bones also serve a function in storing and releasing calcium to the body when needed. The compact bone also provide strong mechanical levers, against which the muscles can create movement.
What is the major difference between compact and spongy bone quizlet?
Compact bone has more bone matrix and less space due to osteons. Spongy bones have less bone matrix and more space due to trabeculae.
What do spongy bone and compact bone have in common?
Compact and spongy bone may differ in some ways, nevertheless, these bones do share several similarities. Both are made of osteocytes, bone cells, and a mineral matrix that holds the osteocytes in place. Both types of bone are also living tissues containing bone, blood vessels, and nerves.
What is the difference between flat bone and spongy bone?
Flat bones have broad surfaces for protection or muscular attachment. Flat bones are composed of two thin layers of compact bone that surround a layer of cancellous (spongy) bone. In an adult, most red blood cells are formed in the marrow in flat bones.
What are compact bones?
compact bone, also called cortical bone, dense bone in which the bony matrix is solidly filled with organic ground substance and inorganic salts, leaving only tiny spaces (lacunae) that contain the osteocytes, or bone cells.
Which bones protect the brain?
The skull protects the brain and forms the shape of the face. The spinal cord, a pathway for messages between the brain and the body, is protected by the backbone, or spinal column.
What is the diaphysis made of?
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The hollow region in the diaphysis is called the medullary cavity, which is filled with yellow marrow. The walls of the diaphysis are composed of dense and hard compact bone.
What is the spongy bone?
Spongy (cancellous) bone is lighter and less dense than compact bone. Spongy bone consists of plates (trabeculae) and bars of bone adjacent to small, irregular cavities that contain red bone marrow. The canaliculi connect to the adjacent cavities, instead of a central haversian canal, to receive their blood supply.
How are the structure of compact and spongy bone different how do those differences in structure help each type of bone perform its different functions?
The spongy bones have a hollow cavity and so have more active functions like the production of blood cells and perform ion exchange. The compact bones, on the other hand, store and also release calcium as they have filled the cavity and provide strength as they are stronger and help to move muscles.
What is the spongy bone made of?
Structure of Spongy Bone
Spongy bone is composed of cells called osteocytes that sit in small cavities known as lacunae. The lacunae and their accompanying osteocytes are housed in the trabeculae matrix of the bone along with the bone marrow.
Why are bones spongy?
Spongy bone reduces the density of bone and allows the ends of long bones to compress as the result of stresses applied to the bone. Spongy bone is prominent in areas of bones that are not heavily stressed or where stresses arrive from many directions.
