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level: Overview of Bone Structure and Function

Questions and Answers List

level questions: Overview of Bone Structure and Function

QuestionAnswer
What type of tissue is Bone?Connective Tissue
What tissues do bones contain?Bones contain - nervous tissue - blood connective tissue - cartilage is found w/in articular cartilages - epithelial tissue lines the blood vessels
What does the bone marrow synthesize?synthesis of new blood cells
What are the functions of the bones?The bones provide the body with support The bones allow for movement the bones provide protection the bones provide mineral storage the bones allow for blood cell formation the bones assist in energy metabolism
How do the bones function in support?the bones provide a hard framework
How do the bones produce movement?skeletal muscles use bones as levers
Why do the bones provide protection?underlying organs require organs
Why do bones provide blood cell formation?bone contains red bone marrow which is a site for the synthesis of new blood cells
How do bones function in energy metabolism?Osteoblasts secrete osteocalcin
What are the two components found in bone tissue?Organic and inorganic components?
What are considered the organic components of bone tissue?-cells - fibers - ground substance
What are considered the inorganic components in bone tissue?- mineral salts that invade and form part of the bony matrix
Describe the role of the organic components in regard to the extracellular matrix of bone tissuethe organic components only make up 35% of the bone matrix but they contribute to flexibility and tensile strength
Describe the role of the inorganic components in regard to the extracellular matrix of bone tissueThe inorganic components make up more than half of the bone matric and provide exceptional hardness allowing them to resist compression
Name the structureLamellae
Name the structureOsteon
Name the structureCentral Canal
Name the structureOsteocytes in Lacunae
Name the structureCanaliculi in matrix
What are the 3 types of cells that are involved in bone production/maintence- osteoblasts - osteocytes - osteoclasts
Function of osteoblastsosteoblasts actively produce and secrete bone matrix
Where do osteoblasts arise from?Osteogenic cells are stem cells that differentiate into osteoblasts so osteoblasts stem from osteogenic cells
Function of Osteocytesosteocytes keep the bone matric healthy
Function of osteoclastsosteoclasts secrete substances that break down bone
The bone matric is ____.osteoid
Name the types of cells in regards to their function/definitonOsteocyte - maintain bone tissue Osteoblast- forms bone matrix osteogenic cell- stem cell that becomes osteoblasts osteoclast- reabsorbs bone
How are bones classifiedBones can be classified according to shape
Name the classification of bones- long bones - short bones - flat bones - irregular bones
what is an example of a long bone?the humerus
What is an example of a flat bone?the sternum
What is an example of a short bone?Talus
What is an example of a irregular bone?vertebra
classify the types of bones1. Long bone 2. flat bone 3. Short bone 4. irregular bone