Question 1

Which of the following best describes the function of the central canal in an osteon?

Accepted Answer

It houses blood vessels and nerves that supply the bone.

Question 2

A patient suffers a fracture in the diaphysis of their femur. Which part of the long bone is affected?

Accepted Answer

The shaft of the bone, primarily composed of compact bone.

Question 3

Which structure allows communication and nutrient exchange between osteocytes in compact bone?

Accepted Answer

Canaliculi

Question 4

During a car accident, a patient sustains a fracture to the vertebral arch. Which of the following is NOT a component of the vertebral arch?

Accepted Answer

Vertebral body (centrum)

Question 5

Which of the following equations correctly represents the relationship between the number of cervical ($$C$$), thoracic ($$T$$), and lumbar ($$L) $$vertebrae in the human vertebral column?

Accepted Answer

$$C + T + L = 24$$

Question 6

A newborn's skull contains fontanelles. What is the primary function of these structures during birth?

Accepted Answer

To allow the skull bones to overlap and flex during delivery.

Question 7

Which bone marking is correctly matched with its function?

Accepted Answer

Condyle – rounded articular surface for joint formation

Question 8

A patient presents with a herniated disc between the L4 and L5 vertebrae. Which type of tissue is primarily involved in this injury?

Accepted Answer

Fibrocartilage

Question 9

Which of the following statements about the thoracic vertebrae is correct?

Accepted Answer

They articulate with ribs via costal facets.

Question 10

If a rib articulates with both the body and the transverse process of a thoracic vertebra, which structures are involved in these articulations?

Accepted Answer

Head and tubercle of the rib

Question 11

Which of the following best explains why the lumbar vertebrae have larger bodies than cervical vertebrae?

Accepted Answer

They support more body weight.

Question 12

A patient has a fracture at the occipital condyle. Which joint is most likely affected?

Accepted Answer

Atlanto-occipital joint

Question 13

Which of the following is a distinguishing feature of cervical vertebrae?

Accepted Answer

Transverse foramina in the transverse processes

Question 14

Which equation best represents the total number of bones in the adult human axial skeleton, given the following: skull ($$S = 22$$), vertebral column ($$V = 26$$), and thoracic cage ($$T = 25$$)?

Accepted Answer

$$S + V + T = 73$$

Question 15

Which of the following best describes the difference between concentric and circumferential lamellae in compact bone?

Accepted Answer

Concentric lamellae are arranged around the central canal of each osteon, while circumferential lamellae wrap around the entire bone shaft.

Question 16

A patient is diagnosed with osteoporosis, which primarily affects the spongy bone in the vertebral bodies. Which region of the vertebral column is most at risk for compression fractures due to this condition?

Accepted Answer

Thoracic and lumbar regions

Question 17

Which of the following best explains why the atlas (C1) vertebra lacks a vertebral body?

Accepted Answer

It allows for articulation with the occipital condyles and increased range of motion for nodding.

Question 18

Which of the following is the correct order of the spinal curves from superior to inferior in the adult vertebral column?

Accepted Answer

Cervical, thoracic, lumbar, sacral

Question 19

A patient presents with difficulty breathing after a car accident. Imaging reveals a fracture of the sternum. Which part of the axial skeleton is directly involved in this injury?

Accepted Answer

Thoracic cage

Question 20

Which of the following best describes the function of perforating (Volkmann's) canals in compact bone?

Accepted Answer

They connect adjacent osteons and allow blood vessels to enter and exit the bone perpendicular to the central canals.

Anatomy & Physiology I Lab: Bone Tissue and Axial Skeleton Study Notes

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드