with precise detailed answers ||\\//|| ||\\//|| ||\\//||
skeletal system - correct answer✔✔bones||\\//|| ||\\//|| ||\\//|| ||\\//||
Structures of the Skeletal System: - correct answer✔✔- bone ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
- cartilage
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- ligaments
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- other supportive connective tissues
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functions of the skeletal system - correct answer✔✔- frame work for the body
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- support body weight
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- attachment point for muscles that allows movement
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- storage reservoir (Ca2+, Phosphorus)
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Cartilage - correct answer✔✔A connective tissue that is more flexible and resilient than
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bone
Chondroblasts - correct answer✔✔cartilage forming cells ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Chondrocytes - correct answer✔✔mature cartilage tissue that occupies small spaces called ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
lacunae and does not have vasculature ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
hyaline cartilage - correct answer✔✔- shiny or glassy appearance
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- in the middle as far as flexibility
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,- example: the tip of the nose
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Fibrocartilage - correct answer✔✔- rigid and strong ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
- example: the vertebral discs
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elastic cartilage - correct answer✔✔- most flexible of the three types
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- example: the outer structure of the ear
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functions of cartilage - correct answer✔✔- support the soft tissues
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- gliding surface of joints
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- precursor model for bone growth
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interstital growth - correct answer✔✔growth from within (a long bones growth in length)
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appositional growth - correct answer✔✔growth from the outside (a bone's growth in ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
diameter)
Functions of bones - correct answer✔✔- structural support ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
- protection for the delicate organs
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- attachment point for muscle
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- hemopoiesis
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- mineral and energy reserves
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long bone - correct answer✔✔- longer than they are wide
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- example: femur
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,short bone - correct answer✔✔- roughly about as wide as they are tall
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- include a special type called sesamoid bone
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sesamoid bone - correct answer✔✔- bone formed in a tendon over a joint
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- example: the patella (kneecap)
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flat bone - correct answer✔✔- very broad and thin bones
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- example: the sternum
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irregular bone - correct answer✔✔- bones that do not fit into the other categories
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- unique in shape
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- example: vertebrae
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what are the regions of long bone - correct answer✔✔- Diaphysis
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- Epiphysis
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- Metaphysis
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Diaphysis - correct answer✔✔- the shaft of a long bone that includes the meduallary cavity
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meduallary cavity - correct answer✔✔The space within the diaphysis of a bone that ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
contains yellow bone marrow ||\\//|| ||\\//|| ||\\//||
what cavity does the endostium line - correct answer✔✔the meduallary cavity
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Epiphysis - correct answer✔✔the ends of long bone that are covered and protected by
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articular cartilage ||\\//||
, articular - correct answer✔✔joint ||\\//|| ||\\//|| ||\\//||
metaphysis - correct answer✔✔growth zone between the epiphysis and the diaphysis ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
during development of a long bone ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
periosteum - correct answer✔✔lines the outside of the bone except where articular ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
cartilage is ||\\//||
nutrient foramen - correct answer✔✔small opening in the middle of the external surface of
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the diaphysis, through which an artery and/or nerve enters the bone to provide
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nourishment
osteoprogenitor cells - correct answer✔✔undifferentiated cells that will become bone ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
osteoblasts - correct answer✔✔bone forming cells that secrete osteoid (the bone forming ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
matrix)
when does and oesteoblast become an osteocyte? - correct answer✔✔when it is completely
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embedded in osteoid ||\\//|| ||\\//||
osteocytes - correct answer✔✔mature bone cells that detect strain on the bone and ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
"decides" if bone should grow or regress ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
osteoclasts - correct answer✔✔dissolves/break bones down due to lack of stress stimulation ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
or the body in need of calcium
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