Q: Which of the following equations correctly represents the relationship between bone mass, bone formation, and bone resorption?

$$\text{Bone Mass} = \text{Bone Formation} - \text{Bone Resorption}$$

Question 1

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

Accepted Answer

It allows for longitudinal growth of the bone during childhood and adolescence.

Question 2

A patient presents with a fracture in the diaphysis of the femur. Which of the following best describes the diaphysis?

Accepted Answer

The shaft of a long bone, composed primarily of compact bone.

Question 3

Which hormone increases blood calcium levels by stimulating osteoclast activity and increasing calcium reabsorption in the kidneys?

Accepted Answer

Parathyroid hormone (PTH)

Question 4

Which of the following equations correctly represents the relationship between bone mass, bone formation, and bone resorption?

Accepted Answer

$$	ext{Bone Mass} = 	ext{Bone Formation} - 	ext{Bone Resorption}$$

Question 5

Which of the following best explains why weight-bearing exercise is recommended for osteoporosis prevention?

Accepted Answer

It stimulates osteoblast activity, leading to increased bone deposition.

Question 6

A 10-year-old child has a bone marrow biopsy showing mostly red marrow in the femur. In an adult, what would most likely be found in the same location?

Accepted Answer

Yellow bone marrow, which stores fat

Question 7

Which of the following bones is formed by intramembranous ossification?

Accepted Answer

Parietal bone of the skull

Question 8

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

Accepted Answer

They connect lacunae, allowing osteocytes to exchange nutrients and waste.

Question 9

A patient is unable to nod their head 'yes.' Which joint is most likely affected?

Accepted Answer

Atlanto-occipital joint between the occipital bone and atlas (C1)

Question 10

Which of the following best describes the difference between the axial and appendicular skeletons?

Accepted Answer

The axial skeleton consists of the skull, vertebral column, and thoracic cage; the appendicular skeleton consists of the limbs and girdles.

Question 11

Which of the following is a structural feature unique to the cervical vertebrae?

Accepted Answer

Transverse foramina

Question 12

Which of the following best describes the function of the menisci in the knee joint?

Accepted Answer

They deepen the articular surface and absorb shock.

Question 13

Which movement is defined as decreasing the angle between two bones, such as bending the elbow?

Accepted Answer

Flexion

Question 14

Which of the following best explains why the glenohumeral (shoulder) joint is more susceptible to dislocation than the hip joint?

Accepted Answer

The glenohumeral joint has a shallow socket and less bony stability.

Question 15

Which of the following correctly matches the bone cell with its function?

Accepted Answer

Osteocyte – maintains bone matrix

Question 16

Which of the following equations correctly represents the effect of parathyroid hormone (PTH) and calcitriol on blood calcium levels?

Accepted Answer

$$	ext{Blood Calcium}_{	ext{after}} = 	ext{Blood Calcium}_{	ext{before}} + (	ext{PTH effect} + 	ext{Calcitriol effect})$$

Question 17

Which of the following best describes the function of the acetabular labrum in the hip joint?

Accepted Answer

It deepens the socket to increase joint stability.

Question 18

Which of the following movements is possible at a hinge joint such as the elbow?

Accepted Answer

Flexion and extension

Question 19

Which of the following best describes the difference between red and yellow bone marrow?

Accepted Answer

Red marrow produces blood cells, yellow marrow stores fat.

Question 20

Which of the following is a function of synovial fluid?

Accepted Answer

Providing nutrients to articular cartilage

Bones, Skeletal System, and Articulations: Study Guide for ANP College Students

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