Histology - Bone

Question 1

What are the four components of Compact bone

Answer 1

1. Lamellae (The rings)
2. Lacuna (cavaties containing osteocytes)
3. Central Canal (contains nerves and blood vessels)
4. Canaliculi (passageway between lacunae)

Question 2

What is the name of the structure of what is contained in compact bones?

Answer 2

An osteon or Haversian system

Question 3

What is the name of the structures contained in Spongy Bone?

Answer 3

Trabeculae - less dense

Question 4

Within Spongy Bone, name the three cells contained within the trabecular

Answer 4

1. Osteocyte
2. Osteoclast
3. Osteoblast

Question 5

Within Spongy Bone, name the three non-cell “things” within

Answer 5

1. Lamellae
2. Lacuna
3. Canaliculi

Question 6

List the four cells of bone tissue

Answer 6

Osteocytes
Osteoblasts
Osteoclasts
Osteoprogenitor cells

Question 7

What is located in the extra-cellular matrix of compact bone

Answer 7

Within the extra cellular matrix of bone is a gel like ground substance with inorganic salts which contains collagen fibres.

Question 8

What is the function of osteoblasts?

Answer 8

Bone producing cells. They function to synthetsize and secrete collagen fibres and other organic components. Initiate calcification.

Question 9

What is the function of Osteogenic cells?

Answer 9

They undergo cell division and develop into osteoblasts.

Question 10

What is the function of osteocytes?

Answer 10

Maintain daily metabolism of bone tissue, including exchange of nutrients and waste with the blood.

Question 11

What is the function of osteoclasts?

Answer 11

Osteoclasts function to remove bone during bone growth.