Question 1

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

Accepted Answer

Storage of sugars and lipids

Question 2

What is the proper anatomical term for the central shaft of a long bone?

Accepted Answer

Diaphysis

Question 3

Which compound accounts for approximately $$\frac{2}{3}$$ the weight of bone?

Accepted Answer

Calcium phosphate

Question 4

The process by which a bone's diameter increases as it lengthens is called:

Accepted Answer

Appositional growth

Question 5

Approximately what percentage of the body's total calcium is stored in the skeleton?

Accepted Answer

99\%

Question 6

Which combination of function and shape best describes the parietal bone of the skull?

Accepted Answer

Protection – Flat

Question 7

Which of the following cell/structure and function combinations is INCORRECT?

Accepted Answer

Osteoclast – Maintains bone by recycling calcium salts

Question 8

A male pelvis typically has a ________ pubic arch and a ________ distance between the ischia.

Accepted Answer

narrower; smaller

Question 9

Which type of joint is capable of free movement?

Accepted Answer

Diarthroses

Question 10

Moving your arm away from the center of your body is called ________, while moving it back toward the center is called ________.

Accepted Answer

abduction; adduction

Question 11

A patient presents with a fracture in the diaphysis of the femur. Which bone cell type would be most active during the initial repair phase?

Accepted Answer

Osteoblast

Question 12

If a person has a deficiency in calcium phosphate, which of the following would most likely occur?

Accepted Answer

Bones would become less rigid and more prone to fractures

Question 13

Which process is primarily responsible for the formation of new bone tissue during growth and healing?

Accepted Answer

Ossification

Question 14

A child is diagnosed with rickets, a disease characterized by soft and weak bones. Which skeletal system function is most directly impaired?

Accepted Answer

Support

Question 15

Which equation best represents the relationship between bone mass ($$M$$), calcium phosphate content ($$C$$), and total bone weight ($$W) if $$calcium phosphate accounts for $$\frac{2}{3} of $$bone weight?

Accepted Answer

$$C = \frac{2}{3}W$$

Question 16

Which scenario best illustrates appositional growth in the skeletal system?

Accepted Answer

A teenager's femur increases in diameter as they grow taller

Question 17

Which joint type would be most affected in a patient with arthritis that limits free movement?

Accepted Answer

Diarthroses

Question 18

If the distance between the ischia in a pelvis increases, which change in pubic arch angle would most likely occur?

Accepted Answer

The pubic arch would become wider

Question 19

Which of the following best describes the function of canaliculi in bone tissue?

Accepted Answer

They allow osteocytes to communicate and exchange nutrients

Question 20

A patient with osteoporosis has decreased bone density. Which skeletal system function is most compromised?

Accepted Answer

Support

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