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

Question 1

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

Accepted Answer

Regulation of body temperature

Question 2

Which bone type is characterized by being thin, flattened, and usually curved, such as the sternum?

Accepted Answer

Flat bone

Question 3

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

Accepted Answer

Diaphysis

Question 4

Which cell type is responsible for bone resorption during bone remodeling?

Accepted Answer

Osteoclasts

Question 5

Which of the following best describes the process of endochondral ossification?

Accepted Answer

Bone forms by replacing hyaline cartilage

Question 6

Which mineral makes up the majority of bone tissue and is essential for muscle contraction?

Accepted Answer

Calcium

Question 7

When blood calcium levels are too low, which hormone is released to increase calcium levels?

Accepted Answer

Parathyroid hormone (PTH)

Question 8

Which of the following is a surface feature of bone that serves as a site for muscle attachment?

Accepted Answer

Elevation or projection

Question 9

Which type of bone marrow is primarily responsible for blood cell production?

Accepted Answer

Red bone marrow

Question 10

A patient with osteoporosis has decreased bone density. Which cell type is likely overactive?

Accepted Answer

Osteoclasts

Question 11

Which equation correctly represents the relationship between bone mass, formation, and resorption?

Accepted Answer

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

Question 12

Which of the following is TRUE about spongy bone compared to compact bone?

Accepted Answer

Spongy bone is lighter and contains red bone marrow

Question 13

Which bone marking is best described as a shallow depression that often serves as an articular surface?

Accepted Answer

Fossa

Question 14

During appositional bone growth, which cells are primarily responsible for adding new bone tissue to the outer surface?

Accepted Answer

Osteoblasts

Question 15

Which of the following best explains why bones cannot be made entirely of compact bone?

Accepted Answer

Bones would be too heavy and lack space for marrow

Question 16

Which of the following is a correct sequence for endochondral ossification?

Accepted Answer

Cartilage model forms → cartilage calcifies → blood vessels invade → bone replaces cartilage

Question 17

Which hormone is released when blood calcium levels are too high, and what is its effect on bones?

Accepted Answer

Calcitonin; stimulates bone formation by osteoblasts

Question 18

Which of the following is a real-life consequence of a deficiency in vitamin D related to bone health?

Accepted Answer

Rickets, resulting in soft and deformed bones

Question 19

Which of the following best describes the role of osteocytes in bone tissue?

Accepted Answer

Maintain bone matrix and communicate mechanical stress

Question 20

A patient has a fracture in the epiphyseal plate. What is the most likely consequence if not treated properly?

Accepted Answer

Impaired bone growth and possible limb length discrepancy

Skeletal System: Structure, Function, and Bone Tissue

Study Guide - Practice Questions