Compact bone contains cylinders of calcified bone called ______________________. These cylinders consist of 4 to 20 Compact bone
contains cylinders of calcified bone called concentric rings of bone known as:___________________. a. osteons, canaliculi
b. lamellae, canaliculi
c. osteons, lamellae
d. Haversian canals, lamellae
e. none of the above
An osteon is the basic functional unit of the cortical bone of a tubular bone. An osteon consists of a central canal that contains two vessels of Havers. Concentric bony laminae are arranged around this canal. These lamellae consist of bone cells and the surrounding base substance. Between the Havers canals there are Volkmann canals that connect the Havers canals. The construction of the cortical bone in these functional units has not yet been fully clarified. In general, it is assumed that these structures serve primarily to deliver tissue and signal transduction. This structure is also supposed to serve the stability and adaptability of the bone.
Rock is a naturally occurring solid mixture of one or more minerals or organic matter.
<em><u>Rock is a solid mixture of crystals of one or more minerals, or organic matter.
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<em><u>Rocks are classified by how they are formed, their composition, and texture. </u></em>Rock has been an important natural resource as long as humans have existed.
The rock cycle is the series of processes in which a rock type changes from one type to another.
