Skeletal System: Bone Structure and Function

Question 1

True or False: Flat bones have a single layer periosteum?

Answer 1

False

Question 2

True or False: All bones have a medullary cavity to store bone marrow?

Answer 2

False

Question 3

True or False: Bone is Highly vascularized.

Answer 3

True

Question 4

Where would you find red bone marrow in Adults?

Answer 4

Selected portions of the axial skeleton, such as the flat bones of the skull, the vertebrae, the ribs, the sternum, and the ossa coxae (hip bones), proximal epiphyses of each humerus and femur.

Question 5

What is the purpose of perforating (Sharpey’s) fibers?

Answer 5

To bind the periosteum to bone

Question 6

Which type of bone would you see osteon?

Answer 6

Compact (cortical) bone

Question 7

What is another name for compact bone?

Answer 7

Cortical bone

Question 8

What is another name for spongy bone?

Answer 8

Trabecular bone

Question 9

Which cell is responsible for secreting osteoid and is bone forming?

Answer 9

Osteoblasts

Question 10

Which cell is responsible for bone resorption?

Answer 10

Osteoclasts

Question 11

Which type of bone would you see red bone marrow?

Answer 11

Red bone marrow is mainly found in the flat bones, but can also be found in the proximal ends of humerus and femur.

Question 12

Which osteo cells are stem cells derived from mesenchyme?

Answer 12

Osteoprogenitor Cells

Question 13

What is the name of the cells that form the cartilage matrix?

Answer 13

Chondroblasts

Question 14

Name of the cell once chondroblast become encased within the matrix and found in the lacunae?

Answer 14

Chondrocytes

Question 15

Is mature cartilage vascular or avascular?

Answer 15

Avascular

Question 16

What do we call the growth of cartilage by length?

Answer 16

Interstitial

Question 17

What do we call the growth of cartilage by width?

Answer 17

Appositional

Question 18

What is the importance of the epiphyseal plate and its importance on growth?

Answer 18

It is a thin layer of hyaline cartilage that provides for the continued lengthwise growth of the bone.

Question 19

What is the importance of red bone marrow?

Answer 19

developing red blood cells and adipocytes.

Question 20

what are mature bone cells derived from osteoblasts that have lost their bone-forming ability when enveloped by calcified osteoid.

Answer 20

Osteocytes

Question 21

Why are stem cells important?

Answer 21

stem cells generate replacements for cells that are lost through normal wear and tear, injury, or disease.