Question 1

Which of the following best describes the structure shown on the left side of the first image (Bone Structure)?

Accepted Answer

Spongy bone, characterized by trabeculae and spaces filled with bone marrow

Question 2

Which primary function of the skeletal system is directly related to the process of hematopoiesis?

Accepted Answer

Blood cell production

Question 3

A bone that is small, flat, and found between the flat bones of the skull is classified as which type?

Accepted Answer

Sutural bone

Question 4

Which of the following bones is an example of a sesamoid bone?

Accepted Answer

Patella

Question 5

What is the main mineral stored in bone tissue, making up almost two-thirds of bone mass?

Accepted Answer

Calcium phosphate, $$Ca_3$$($$PO_4)_2$

Question 6

Which cell type is responsible for breaking down bone matrix and releasing stored minerals?

Accepted Answer

Osteoclasts

Question 7

During endochondral ossification, what is the first major event?

Accepted Answer

Formation of the primary ossification center in the middle of the cartilage model

Question 8

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 9

A fracture that occurs with a twisting motion, resulting in a corkscrew-shaped break, is called:

Accepted Answer

Spiral fracture

Question 10

Which bone marking is most likely to be found where tendons and ligaments attach?

Accepted Answer

Process

Question 11

Which of the following best describes the diploë?

Accepted Answer

The layer of spongy bone between two layers of compact bone in flat bones of the skull

Question 12

Which equation represents the formation of hydroxyapatite, the main mineral in bone?

Accepted Answer

$$Ca_3$$($$PO_4)_2 + Ca(OH)_2$$ \rightarrow $$Ca_5$$($$PO_4)_3(OH$$)$$

Question 13

Which of the following is true regarding bone remodeling?

Accepted Answer

It involves both osteoblasts and osteoclasts

Question 14

A child suffers a fracture at the epiphyseal plate. What is the most likely long-term consequence if not properly treated?

Accepted Answer

Impaired bone growth and possible limb length discrepancy

Question 15

Which of the following statements about compact bone is correct?

Accepted Answer

It contains osteons with concentric lamellae surrounding a central canal

Question 16

Which process is responsible for the deposition of calcium salts in bone tissue?

Accepted Answer

Calcification

Question 17

Which of the following is a plausible effect of prolonged inactivity on bone tissue?

Accepted Answer

Loss of up to one-third of bone mass within a few weeks

Question 18

Which bone cell type is a stem cell that produces osteoblasts?

Accepted Answer

Osteogenic cell

Question 19

Which of the following is NOT a function of the skeletal system?

Accepted Answer

Production of hormones

Question 20

A patient presents with a Colles fracture. Which bone is affected and where is the break located?

Accepted Answer

Radius, about an inch below the wrist

Bone Structure and Classification: Anatomy & Physiology Study Notes

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