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29 Cards in this Set
- Front
- Back
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name 5 functions of the skeletal system
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1. support
2. protection (ribs protect lungs, cranium protects brain..etc) 3. movement - muscles are anchored to bones. 4. storage - stores calium 5. hemopoesis - blood cell formation |
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name 4 types of bones
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long, short, irregular, flat
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name 6 parts of the bone
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diaphysis, epihysis, periosteum, medullary cavity, articular cartilage, endosteum
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2 main parts of a bone
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epiphysis and diaphysis
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the connective tissue covering the bone is called?
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periosteum
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what is the medullary cavity
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the space between a bone
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difference between compact and spongy bone
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compact bone is hard and spongy bone is soft
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what are the spacesin the spongy bone called
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trabeculae
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what covers the end os the epiphysis
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atricular cartilage
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where is the red bone barrow located
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in the epiphysis
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name the 2 layers of the periosteum
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1. fibrous layer
2. osteogenic or cellular layer |
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NAME THE 2 WAYS BONE DEVELOPS
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endochondral -(cartilage ossifies)
intramembranous - (connective tissue ossifies) |
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where are osteocytes found
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in the lucunae ( spaces between the hard layers of lamaellae)
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what are canaliculi
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tiny passages that connect lacunae with each other and with the central canal in each harversian system.
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what are cartilage cells called
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chondrocytes
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when does growth stop?
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when the epiphyseal plate (cartilage between the epyphsis and diaphysis) is transformed into bone.
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the blood vessels runnning from the outside to the inside of a bone is known as
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periosteal vessels
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how does boen grow in width
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1. osteoblasts create new bone
2. osteoclasts eat the bone away 3.osteocytes maintain the existing bone |
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how dioes bone grow
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chondroblasts forsm c artilage, bone starts to develop perichondrium, they secrete bone
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name and explain 4 bone diseases
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1. osteoarthritis - degeneration of the articular cartilage
2. osteoporosis - deterieration of the bone in mass and density 3. osteomalacia - softening of the bones due to loss of mineralization resulting from lack of vitamin d ( in children it is called rickets) 4. osteomyelitis - infection of bone marrow by stepococcal bacteria or virus. |
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sarah's formula
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determine:
1. sex 2.age 3. ethnicity 4. height |
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how does bone heals itself
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bone is broken,there is a blood clot, first the osteogenic layer starts makin cartilage (chondrophies the clot). cartilage buils up anf forms calus all around and the cartilage ossifies into bone callus.
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when does growth stop?
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when the epiphyseal plate (cartilage between the epyphsis and diaphysis) is transformed into bone.
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the blood vessels runnning from the outside to the inside of a bone is known as
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periosteal vessels
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how does boen grow in width
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1. osteoblasts create new bone
2. osteoclasts eat the bone away 3.osteocytes maintain the existing bone |
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how dioes bone grow
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chondroblasts forsm c artilage, bone starts to develop perichondrium, they secrete bone
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name and explain 4 bone diseases
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1. osteoarthritis - degeneration of the articular cartilage
2. osteoporosis - deterieration of the bone in mass and density 3. osteomalacia - softening of the bones due to loss of mineralization resulting from lack of vitamin d ( in children it is called rickets) 4. osteomyelitis - infection of bone marrow by stepococcal bacteria or virus. |
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sarah's formula
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determine:
1. sex 2.age 3. ethnicity 4. height |
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how does bone heals itself
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bone is broken,there is a blood clot, first the osteogenic layer starts makin cartilage (chondrophies the clot). cartilage buils up anf forms calus all around and the cartilage ossifies into bone callus.
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