STRUCTURE OF BONE

Question 1

What is spongy bone?

Answer 1

Open network of struts and plates

Question 2

What is the orientation of spongy bone?

Answer 2

Tribucular bone

Question 3

What is compact bone?

Answer 3

Relatively dense and solid

Question 4

How are compact bones arranged?

Answer 4

Circular arrangment of bony plates (blood vessels inside feeds the bone)

Question 5

Where is bone marrow found?

Answer 5

Medullary cavity

Question 6

How is the membrane in the medullary cavity?

Answer 6

Thin layer membrane

Question 7

What is the periosteum?

Answer 7

Interface between bone and nerves

Question 8

Where do osteoprogenitor cells live?

Answer 8

Periosteum

Question 9

What are the two types of bone marrow?

Answer 9

1. Yellow marrow
2. Red marrow

Question 10

What is yellow marrow?

Answer 10

Adipocytes (fat)

Question 11

What is red marrow?

Answer 11

Mature and immature red and white blood cells

Question 12

What is the interstitial lamellae?

Answer 12

Fills the gaps of circular arrangement of bone

Question 13

What is concentric lamellae?

Answer 13

Basic unit of mature compact bone (circular structure)

Question 14

What are osteons?

Answer 14

Cells inside lamellae

Question 15

What are osteons also known as?

Answer 15

Haversian System

Question 16

What is the structure of bone?

Answer 16

Osteocytes organized in concentric layers around a central canal containing blood vessels supplying the osteon

Question 17

What are mesenchymal cells?

Answer 17

Stem cells that differentiate into anything