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6 Review Questions B

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.

A condition that produces a reduction in bone mass sufficient to compromise normal function is   osteoporosis  
A major difference between bone tissue and other connective tissues lies in   The composition of the intercellular substance of bone  
the following statements concerning the periosteum of a bone is NOT true   All bone in the body is covered by periosteum  
the following factors is NOT believed to affect bone growth   Increased intake of protein  
During fetal development intramembranous ossification takes place in   connective tissue membranes  
Elevated levels of calcium ion in the blood stimulate the secretion of the hormone   calcitonin  
Endochondral and intramembranous are terms that are used to describe   the development of bone  
Endochondral ossification begins with the formation of   a cartilage model.  
the following is NOT a function of the skeletal system   Hormone production  
increasing the proportion of organic molecules to inorganic components in the bony matrix affect the physical characteristics of bone   The bones would be more flexible.  
Long bones differ from flat bones in that long bones   have epiphyses  
The bones of the skeleton store energy reserves as lipids in areas of   yellow marrow  
The cells that maintain mature compact bone are   osteocytes.  
The lacunae of bone contain   osteocytes  
The process of bone growth at the epiphyseal plate is similar to   endochondral ossification  
The two types of osseous tissue are   compact bone and spongy bone.  
When cartilage is produced at the epiphyseal side of the metaphysis at the same rate as bone is deposited on the opposite side, bones   grow longer  
When the epiphyseal plate is replaced by bone   long bones have reached their adult length  
Intramembranous ossification   begins within a connective tissue membrane  
A fracture in the shaft of a bone would occur in the   diaphysis.  
Growth of a cartilage in which the chondrocytes within the matrix become active and proliferate is known as   interstitial growth.  
Osteocytes maintain contact with the blood vessels of the central canal through   canaliculi.  
Spongy bone contains all of the following except   true osteons.  
The bones in the long axis of the body make up the   axial skeleton.  
the following is a canal-like passageway   meatus  
the following characteristics of skeletal cartilage limits its thickness   It is avascular and receives most of its nourishment from the perichondrium that surrounds it.  
the following structures is made of elastic cartilage   the epiglottis  
The menisci of the knee are made of   fibrocartilage.  
the following statements best describes interstitial growth of cartilage   Chondrocytes divide and secrete new matrix from within the cartilage.  
bones act to alter the direction of tendon pull.   Sesamoid  
All of the following are stored in the matrix of bones except   vitamin D.  
A narrow slit-like opening in a bone is referred to as a   spine  
the following structures anchors the periosteum to the underlying bone   perforating  
the following is the site where bone marrow is routinely sampled in an adult   the sternum  
Bone forming cells originate from   osteoprogenitor cells.  
A Haversian system is the functional unit of   lamellar bone.  
The twisting of a long bone is prevented by   circumferential lamella  
It is currently thought that sacrificial bonds between_______ provide resilience to bone tissue.   collagen molecules  
Hydroxyapatite in bone matrix that gives bone its hardness is primarily composed of   calcium and phosphates  
65% of bone mass is composed of   hydroxyapatites.  
In the human embryo, before eight weeks the skeleton is composed of   fibrous membrane  
type of bone only has primary ossification centers   short bones  
In month three of endochondral ossification, the first structure to be formed is a collection of elements known as the ____________ that invades the bone cavities present at this time.   periosteal bud  
Every week we recycle _____ of our bone mass.   5%  
the following statements about osteoclasts is incorrect   Osteoclasts only reabsorb old bone matrix.  
the following hormones' primary function is to regulate bone density   leptin  
If a breastfeeding mother becomes vitamin D deficient, what is the most likely disease to develop in the nursing infant?\\   ricket  
the following fractures would be the most likely not to heal   a comminuted fracture  
alendronate help treat osteoporosis   It suppresses osteoclast activity.  
All bones of the skeleton below the base of the skull are developed by endochondral ossification except the   clavicle  
A condition that produces a reduction in bone mass sufficient to compromise normal function is osteomyelitis.   False  
Collagen in the bone matrix provides flexible strength   True  
Endochondral ossification begins with the formation of a calcified model.   False  
Excess growth hormone prior to puberty would result in gigantism.   True  
Mature bone cells are called chondrocytes   False  
Parathyroid hormone stimulates osteoblast activity.   False  
Scapulae are formed by intramembranous ossification   False  
Secondary ossification centers occur in the center of the diaphysis.   False  
The central canal of an osteon contains osteocytes.   False  
The hormone calcitonin functions to decrease the calcium ion in the blood.   True  
The most abundant mineral in the human body is calcium.   True  
The presence of an epiphyseal line indicates that long bone growth is still in process.   False  
The shaft of the long bone is called the diaphysis.   True  
The type of bone that is adapted to withstand stresses that arrive from a limited range of directions is compact bone.   True  
Vitamin D is necessary for the formation of the organic framework of bone.   False  
Osseous tissue is avascular.   False  
Appositional growth in a skeletal cartilage will increase its overall length.   False  
A metacarpal is an example of a long bone   True  
An increase in parathyroid hormone can cause bones to become porous and brittle.   True  
Increasing the percentage of collagen in a bone would make it become more rigid.   False  


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