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Anatomy of Bone Tissue

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Questions and Answers

What is the main function of bone tissue?

To aid in gas exchange
To provide mechanical support and protection (correct)
To store and release calcium into the blood
To provide flexibility to the body

What type of bone tissue is characterized by a secondary bone structure with parallel lamellae?

Compact bone
Tissue bone
Cancellous bone (correct)
Spongy bone

Where is cancellous bone typically located?

In the endoskeleton of cartilaginous fish
In the outer layers of flat bones
In the epiphysis and metaphysis of short and long bones (correct)
In the diaphysis of long bones

What is the primary component of cancellous bone?

Irregularly anastomosing bone trabeculae (B) Signup and view all the answers

What is the function of bone marrow in cancellous bone?

To produce and store blood cells (A) Signup and view all the answers

What is the relationship between bone tissue and muscles?

Bones serve as attachment points for muscles and tendons (B) Signup and view all the answers

How do bone cells receive nutrition in spongy bone tissue?

Through the cytoplasmic extensions through the canaliculi from the vessels in the bone marrow (D) Signup and view all the answers

What is the characteristic of the bone tissue that resembles a sponge?

Spongy bone tissue (C) Signup and view all the answers

What is the characteristic of compact bone in the diaphysis?

It is made of compact bone with very little cancellous bone (A) Signup and view all the answers

What is the arrangement of collagen fibrils in compact bone?

Parallel to each other or circularly arranged around a vascular canal (A) Signup and view all the answers

How do bone cells communicate with each other in compact bone?

Through thin canaliculi (B) Signup and view all the answers

What is the composition of the bone matrix?

Organic matrix and inorganic matrix (C) Signup and view all the answers

What is the primary function of carboxyglutamic acid in bone glycoproteins and sialoproteins?

Binding of calcium ions (D) Signup and view all the answers

What is the main component of the connective tissue fibers in bone?

Type 1 collagen threads (A) Signup and view all the answers

What is the approximate percentage of the inorganic matrix in the dry weight of bone?

50-65% (B) Signup and view all the answers

What is the chemical formula for the hydroxyapatite crystals formed in the bone matrix?

Ca10(PO4)6.(OH)2- (D) Signup and view all the answers

What is the recommended size of bone samples for histological examination?

Under 5 mm (C) Signup and view all the answers

What is the purpose of decalcification in preparing bone samples for histological examination?

To remove minerals and allow for sectioning (D) Signup and view all the answers

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