Chapter 6: Osseous tissue Flashcards
What are general functions of the skeletal system?
- Support
- Protection
- Leverage/movement (muscles gotta pull on something)
- Storage of minerals and lipids
- Blood cell production
What bone marrow is associated with lipid storage?
Yellow bone marrow
What bone marrow is responsible/associated with blood cell production and what is that process called?
Red bone marrow is associated with blood cell production and this process is called hemopoiesis.
Label 1-5 appropriately
- Proximal epiphysis
- Meraphysis
- Diaphysis
- Metaphysis
- Distal Epipysis
Lable 1-3 appropriately with appropriate TYPE of bone.
- Spongy Bone
- Spongy Bone
- Compact bone
The structure labeled “1” is the space that contains what type of marrow?
Red Marrow
“2” is what cavity and “3” is what type of marrow?
2 = Medullary cavity
3 = Yellow Marrow
What type of bone contains red bone marrow?
Spongy bone (cancellous bone) contains red bone marrow
The medullary cavity contains what type of bone marrow?
yellow bone marrow
The blue stars represent the part of the bone which articulates with another. The purple star is a double layered covering of bone. What are the correct names?
- Articular Cartilage
- Periosteum
The blue star structure is known as the…
Epiphyseal plate
In adults, the epiphyseal plate turns into the….
Epiphyseal line
Image 1 belongs a child or an adult? What are the yellow stars pointing to?
Child; yellow stars are point to epiphyseal cartilages
Bone contains inorganic and organic material. By weight, most of bones mass is of _______ material
Inorganic
Organic material consist of…
Cells, protein fibers (collagen), ground substance (semisolid mix of non-fibrous proteins)
The ground substance + the protein fibers make up what?
Osteoid
calcium phosphate and calcium hydroxide combine to form…? Is this an organic or inorganic substance?
Hydroxyapatite; this is consider apart of the INORGANIC material of bone.
Without mineral would bone have as much integrity?
No, it would be soft and easily malleable.
What would bone be like without collagen?
Easily breakable. Way to brittle and “stiff”
The inroganic and the organic materials make up what is known as the bone ______?
Matrix
What are the 4 types of bone cells?
- Osteocytes
- Osteoblasts
- Osteoclasts
- Osteoprogenitors
What is the function of osteocytes?
Osteocytes…
- Are mature bone cells that maintain the bone matrix.
What is the function of Osteoblasts?
Add to/ build new bone matrix during growth and remodeling
What is the function of Osteoclasts?
Remove/ tear down bone matrix during growth and remodeling
What is the function of Osteoprogenitors?
Maintain osteoblasts population
The outside surface of bone is a two layered tissue called the ______
Periosteum
The inside surface (lining of marrow cavity) also covered by epithelial tissue is called the…
Endosteum
The outer layer of the periosteum is known as the _____ layer while the inner layer is known as the _____ layer?
- Outer layer = fibrous layer
- Inner Layer = cellular layer
Compact bone is arranged in _____?
Osteons
Spongy bone is arranged in?
Trabeculae
Identify structures 1-4 in the picture
- Osteons
- Trabeculae
- Endosteum
- Periosteum
The structure illustrated/indicated by the blue box is showing the circular, repeating unit of compact bone known as…
Osteon
“1” is called…
Concentric lamellae
“2” is…
Central canals
Identify Numbers 1-5
- Periosteum
- Osteon
- Central Canal
- Perforating Canals
- Central Canal
Identify 1-3
- Lacuna
- Osteocyte
- Canaliculi
Identify 1 and 2
- Lacunae
- Osteon
True or False… Spongy bone contains osteons?
False. It contains trabecula
Why is vitamin c important for bone health?
Collagen formation
Bone loss from normal agining is known as osteoporosis? True or false?
False. Osteopenia is the result of bone loss due to aging. Non-pathological
