102 Biology of Bone

Question 1

What is bone?

Answer 1

Bone is a living, calcified (hard) connective tissue.

Question 2

Bones are not fully-formed at birth. True or False?

Answer 2

True

Question 3

What other tissues does bone tissue interact with?

Answer 3

• Fibrous connective tissue and muscle
• Vascular tissue (blood)
• Lymphatic tissue
• Nerves
• Cartilage
• Adipose tissue (fat)

Question 4

Bone loss = tooth loss in teeth. What is this disease called?

Answer 4

Periodontal disease

Question 5

What are the two types of bone tissue?

Answer 5

Compact bone and trabecular (spongy or cancellous) bone.

Question 6

What is the role of compact (cortical) bone?

Answer 6

Compact bone forms the outer shell of bones.

Question 7

What is the role of trabecular (spongy) bone?

Answer 7

Trabecular bone is bony mesh that supports the myeloid tissue (red bone marrow - blood cell formation).

Question 8

What are the 6 kinds of bones?

Answer 8

• Long bones
• Short bones
• Flat bones
• Irregular bones
• Sesamoid bones
• Sutural bones

Question 9

What is haematopoiesis?

Answer 9

Haematopoiesis is the formation of blood cellular components – occurs during embryonic development and throughout adulthood to produce and replenish the blood system.

Question 10

What % of the composition of bone is organic?

Answer 10

1/3

Question 11

What % of the composition of bone is inorganic?

Answer 11

2/3

Question 12

What is the main component in bone?

Answer 12

Hydroxyapatite (inorganic)

Question 13

The teeth roots are contained within sockets lined with…?

Answer 13

Alveolar bone

Question 14

What are the plates of compact bone surrounding the tooth called?

Answer 14

Alveolar bone proper (bundle bone).