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28 Cards in this Set
- Front
- Back
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What is the function of bones
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1. support and protect
2. movement support 3 hemopoieses blood cell production 4. mineral and energy storage |
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This type of bone has solid external walls made of compact bone and spongy bone inside
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Long bone
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This type of bone has length and width about equal and some examples are the carpal and tarsal
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Short bone
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This type of bone has two outer layers of compact bone with spongy bone in between. Examples are roof of skull, scapula, sternum, ribs
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Flat bone
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This type of bone has complex shapes and some examples are the vertebrae and some cranial bones
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Irregular bone
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What the shaft region called on a bone
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diaphysis
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Whats the Knobby end callled on a bone
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epiphysis
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This region of a bone is between the diaphysis and epiphysis
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metaphysis
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What do you call the area where bone marrow resides
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Medullary cavity
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What is the outer layer of bone called made of dense irregular CT
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Periosteum
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What do you find at the end of the epiphysis
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articular cartilage
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What connects the periosteum to the underlying bone CT
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Perforating fibers
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Perichondrium of cartilage is like the what of bone
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periosteum
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This lines the inside of bone cavities and contributes to bone growth and repair
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endosteum
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What provides flexibility and tensile strength in ECM of bone
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Protein fibers (especially collagen
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What gives bone its compressional strength
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Calcium Phosphate from ground substance
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What are the four different types of cells that bone has
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1. osteoprogenitor cells
2. osteoblasts 3. osteocytes 4. osteoclasts |
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these are stem cells and divide to give rise to osteoblasts. They live in the periosteum and endosteum
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osteoprogenitor cells
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These cells secrete organic components of the ecm (collagen and carbohydrates) and become trapped in the ECM they made called lacunae and then mature to become osteocytes
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Osteoblasts
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What type of cell in bone is a mature bone cell and maintains the ECM and detects stresses on bone and signals to osteoblasts to make more bone CT
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osteocytes
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Large, multinuclear cells. perform bone resorptions by secreting HCL to dissolve minerals and enzymes to dissolve organic part of ECM
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osteoclasts
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What does the central canal have
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Blood vesells and nerves
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What do you call concentric rings of bone around the central canal
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Lamellae
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Where do osteocytes live
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Lacunae
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What do you call the pathways through the bone and contain processes of osteocytes
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canaliculi
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A lattice work, which saves weight but maintains strength
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spongy bone
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What provides strength in all directions in the spongy bone
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crisscrossing trabeculae
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What do you find within the lattice work, meaning between the trabeculae
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Red bone marrow
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