Question 1

Which of the following best describes the function of the epiphyseal plate in a growing long bone?

Accepted Answer

It allows for lengthwise growth by forming new bone tissue.

Question 2

A patient presents with a compound fracture of the femur. Which of the following best describes this type of fracture?

Accepted Answer

The broken bone penetrates through the skin.

Question 3

Which hormone is primarily responsible for increasing blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 4

During bone remodeling, which factor determines WHERE bone matrix is broken down or formed?

Accepted Answer

Pull of gravity and muscles on the skeleton

Question 5

Which of the following bone types is correctly matched with its description and example?

Accepted Answer

Long bone: longer than wide, shaft with enlarged ends; example: humerus

Question 6

A 10-year-old child suffers a fracture at the epiphyseal plate of the tibia. What is the most significant long-term risk associated with this injury?

Accepted Answer

Disrupted lengthwise growth of the bone

Question 7

Which of the following structures is NOT part of the axial skeleton?

Accepted Answer

Scapula

Question 8

Which bone marking is described as a sharp, slender, often pointed projection?

Accepted Answer

Spine

Question 9

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

Accepted Answer

Vertebral collapse resulting in kyphosis

Question 10

Which of the following correctly matches the joint type with its functional classification?

Accepted Answer

Symphysis: amphiarthrosis

Question 11

Which of the following best explains why the hyoid bone is unique among bones of the skull?

Accepted Answer

It does not articulate with any other bone.

Question 12

Which equation best represents the relationship between bone mass and mechanical stress, according to Wolff's Law?

Accepted Answer

$$M_{bone} \propto S_{mechanical}$$

Question 13

Which of the following is a distinguishing feature of synovial joints?

Accepted Answer

Articulating bones are separated by a joint cavity containing synovial fluid.

Question 14

A patient has a deficiency in collagen production. Which property of bone would be most affected?

Accepted Answer

Bone's flexibility and tensile strength

Question 15

Which of the following correctly describes the arrangement of compact bone at the microscopic level?

Accepted Answer

Osteons containing concentric lamellae around a central canal

Question 16

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

Accepted Answer

Hematoma forms, fibrocartilage callus forms, bony callus forms, bone remodeling

Question 17

Which of the following bones is classified as a sesamoid bone and forms within a tendon?

Accepted Answer

Patella

Question 18

A patient is diagnosed with hypercalcemia. Which cellular activity is most likely to increase as a result?

Accepted Answer

Osteoblast activity to store calcium in bone

Question 19

Which of the following best describes the difference between primary and secondary spinal curvatures?

Accepted Answer

Primary curvatures are present from birth in the thoracic and sacral regions; secondary curvatures develop after birth in the cervical and lumbar regions.

Question 20

Which of the following equations best represents the relationship between the number of phalanges in the human hand and the number of fingers and thumbs?

Accepted Answer

$$N_{phalanges} = 3 	imes 4 + 2 	imes 1 = 14$$

Skeletal System: Structure, Function, and Development

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