chapter 6 Word Scramble
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Question | Answer |
a function of the skeleton system is? | 1. body support and muscle attachment 2. calcium regulation 3. protectin of internal organs 4. blood cell production |
the carpal bones are examples of ____ bones | short |
a rib is an example of ____ bone | flat |
this bone is classified as a "irregular" in shape | vertebra |
bones that develop within tendons are called ___ bones | sesamoid |
blood cell formation occurs in | red bone marrow |
teo-thirds of the weight of bone is accounted for by: | calcium phosphate |
the membrane found wrapping the bones, at the joint cavity, is the: | periosteum |
immature cells that secrete the organic components of the bone matrix are called: | osteoblasts |
___ are cells responsible for dissolving bone matrix | osteoclasts |
___ are stem cells whose divisions produce new bone cells | osteoprogenitor cells |
the central canal of an osteon contains: | blood vessels |
the interconnecting tiny plates and struts of bone tissue found in spongy bone are called: | trabeculae |
during endochondral ossification of long bones, the primary ossification centers form in the __ ans the secondary ossification centers form in the __ | diaphyses; epiphyses |
intramembranous ossification results initially with the formation of: | spongy bone |
what structure allows a bone to grow in length? | epiphyseal plate |
the lining of the medullary cavity of a long bone is called the: | endosteum |
the presence of an epiphyseal line indicates: | epiphyseal growth has ended |
the articular cartilage of a typical long bone is composed of what type of cartilage? | hyaline cartilage |
the nonpathological loss of bone that occurs with aging is called: | osteoporosis |
which of the following conditions would you possibly observe in a child who is suffering from rickets? | bowed legs |
after a fracture of the diaphysis has healed, the thickened region that results is called the: | external callus |
mary is 50 years old and has entered menopause. during a checkup, a bone scan reveals the beginnings of osteoporosis. her physician suggest nutritional therapy. what might she recommend for her patient? | - vitamin C - vitamin D - calcium supplements |
in bone, calium phosphate interacts with calcium hydroxide to form crystals of: | hydroxyapatite |
the hormone calcitonin __ blood calcium levels and parathyroid hormone __ blood calcium levels. | decrease; increase |
which hormone promotes bone-building? | calcitonin |
in normal adult bone, a portion of the protien and minerals content is replaced each year. both osteoblasts and osteoclasts are involved in this process called ___ | remodeling |
a lack of exercise would: | result in thin and brittle bone |
how would removing hydroxyapatite from bone matrix affect physical characteristics of a bone? | the bone would be more flexible |
on average, women are short than men due to: | - earlier epiphyseal closure - higher levels of estrogen |
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apurcel1
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