Q: Which of the following equations represents the relationship between bone mass loss and age in women, given that women lose 8% of bone mass per decade after age 30?

$$M = M_0$ \times (1 - 0.08n)$$, where $$M_0 is $$initial bone mass and $$n is $$number of decades after age 30

Question 1

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

Accepted Answer

Regulation of blood glucose levels

Question 2

A patient presents with a fracture in the shaft of their femur. Which part of the long bone is affected?

Accepted Answer

Diaphysis

Question 3

Which type of bone cell is responsible for bone resorption through the process of osteolysis?

Accepted Answer

Osteoclasts

Question 4

Which equation correctly represents the chemical formula for hydroxyapatite, the main mineral component of bone matrix?

Accepted Answer

$$Ca_{10}(PO_4$)_6(OH)_2$$

Question 5

During endochondral ossification, which tissue is replaced by bone?

Accepted Answer

Hyaline cartilage

Question 6

Which bone marking is most likely to be found where a tendon attaches to a bone?

Accepted Answer

Projection

Question 7

A deficiency in which vitamin is most likely to result in rickets, a form of osteomalacia in children?

Accepted Answer

Vitamin D

Question 8

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 9

Which of the following best describes the structure of compact bone?

Accepted Answer

Osteons with central canals containing blood vessels

Question 10

Which process allows bones to adapt to increased physical stress, such as weight-bearing exercise?

Accepted Answer

Bone remodeling

Question 11

A patient with osteoporosis is at increased risk for which of the following complications?

Accepted Answer

Fragile bones and increased fracture risk

Question 12

Which of the following best explains why the epiphyseal plate is important during childhood and adolescence?

Accepted Answer

It allows for longitudinal growth of long bones

Question 13

Which of the following is a correct sequence of events in fracture repair?

Accepted Answer

Hematoma formation, callus formation, bone remodeling

Question 14

Which type of bone is formed by intramembranous ossification?

Accepted Answer

Flat bones of the skull

Question 15

Which of the following best describes the role of osteocytes?

Accepted Answer

Maintain the protein and mineral content of bone matrix

Question 16

A 50-year-old woman is diagnosed with osteoporosis. Which physiological change most likely contributed to her condition?

Accepted Answer

Decline in estrogen levels after menopause

Question 17

Which of the following equations represents the relationship between bone mass loss and age in women, given that women lose 8% of bone mass per decade after age 30?

Accepted Answer

$$M = M_0$ 	imes (1 - 0.08n)$$, where $$M_0 is $$initial bone mass and $$n is $$number of decades after age 30

Question 18

Which of the following best describes the difference between compact bone and spongy bone?

Accepted Answer

Compact bone is composed of osteons, while spongy bone consists of trabeculae

Question 19

Which of the following minerals is most abundant in bone tissue?

Accepted Answer

Calcium

Question 20

A child with Marfan syndrome is likely to exhibit which skeletal feature?

Accepted Answer

Long, slender limbs due to excessive cartilage formation at epiphyseal plates

Bone Tissue and the Skeletal System: Structure, Function, and Classification

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