18 Questions
What is the main function of bone tissue?
To provide mechanical support and protection
What type of bone tissue is characterized by a secondary bone structure with parallel lamellae?
Cancellous bone
Where is cancellous bone typically located?
In the epiphysis and metaphysis of short and long bones
What is the primary component of cancellous bone?
Irregularly anastomosing bone trabeculae
What is the function of bone marrow in cancellous bone?
To produce and store blood cells
What is the relationship between bone tissue and muscles?
Bones serve as attachment points for muscles and tendons
How do bone cells receive nutrition in spongy bone tissue?
Through the cytoplasmic extensions through the canaliculi from the vessels in the bone marrow
What is the characteristic of the bone tissue that resembles a sponge?
Spongy bone tissue
What is the characteristic of compact bone in the diaphysis?
It is made of compact bone with very little cancellous bone
What is the arrangement of collagen fibrils in compact bone?
Parallel to each other or circularly arranged around a vascular canal
How do bone cells communicate with each other in compact bone?
Through thin canaliculi
What is the composition of the bone matrix?
Organic matrix and inorganic matrix
What is the primary function of carboxyglutamic acid in bone glycoproteins and sialoproteins?
Binding of calcium ions
What is the main component of the connective tissue fibers in bone?
Type 1 collagen threads
What is the approximate percentage of the inorganic matrix in the dry weight of bone?
50-65%
What is the chemical formula for the hydroxyapatite crystals formed in the bone matrix?
Ca10(PO4)6.(OH)2-
What is the recommended size of bone samples for histological examination?
Under 5 mm
What is the purpose of decalcification in preparing bone samples for histological examination?
To remove minerals and allow for sectioning
This quiz covers the characteristics and structure of different types of bone tissue, including cancellous and compact bone, and their functions in the body.
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