Chapter 6 Group 2
Spongy bone is found primarily at which part of long bones?
Expanded ends, where long bones articulate with other skeletal elements
Which of the following statements about bone tissue is FALSE?
It is made primarily of cells
Which of the following types of bone cells are responsible for removing and recycling bone?
Osteoclasts
Which component of bone is responsible for blood cell formation?
Red bone marrow
One function of bone is to produce red and white blood cells. Thses cells are made in what substance in bone?
Red marrow
Which of the following is an effect of stress on bone?
The bone will become thicker
The basic functional unit(s) of compact bone tissue is/are ___.
an osteon
Unlike compact bone, spongy bone (also called cancellous bone) resembles a network of bony struts separated by spaces that are normally filled with ___.
bone marrow
Narrow passageways that allow osteocytes to communicate with neighboring osteocytes are called ___.
canaliculi
The small passageways that exist in the bone matrix to allow living bones cells to obtain nutrients and get rid of wastes are called __________.
canaliculi
The term for the expanded end of a long bone where the joint surfaces are located is the ___.
epiphysis
Two-thirds of a bone's weight is composed of calcium phosphate which interacts with calcium hydroxide to form crystals of ___.
hydroxyapatite
The spaces in the bony matrix where osteocytes exist are __________.
lacunae
Compact bone is characterized by many cylindrical osteons. Osteons are formed by layers of nested cylinders each called a(n) ___.
lamella
the narrow zone that connects the epiphysis and the diaphysis of long bones is the ___.
metaphysis
Cells that produce new bone matrix are called ___.
osteoblasts
An osteoclasts absorb and remove bone matrix, they leave shallow depressions called a(n) ___.
osteoclastic crypt
Giant, multinucleated cells involved in the process of osteolysis are ___
osteoclasts
Mature bone cells found in lacunae are called ___.
osteocytes
Even as an adult, we have populations of primitive cells that can produce osteoblasts. These primitive cells are called __________.
osteogenic cells
the process of bone breakdown or erosion is called ___.
osteolysis
Canals that extend perpendicularly through bone to supply blood to deeper osteons and to tissues of the medullary cavity are ___ canals
perforating
the meshwork of supporting bundles of fibers that make up spongy bone are ___.
trabeculae
which of the following are NOT structural components of compact bone
trabeculae
Which component of bone stores energy?
yellow marrow
